Home / 8,691,409.70-13,037,114.55-8,628,424.10

Finding the Fourth Proportional to 8,691,409.70, 13,037,114.55 and 8,628,424.10

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Solution

The fourth proportional to 8,691,409.70, 13,037,114.55 and 8,628,424.10 is: 12,942,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,409.70 : 13,037,114.55 = 8,628,424.10 : x
  2. Step 2: Convert to fraction form
    8,691,409.70/13,037,114.55 = 8,628,424.10/x
  3. Step 3: Cross multiply
    8,691,409.70x = 13,037,114.55 × 8,628,424.10
  4. Step 4: Simplify right side
    8,691,409.70x = 112,489,753,377,680.66
  5. Step 5: Solve for x
    x = 112,489,753,377,680.66/8,691,409.70
  6. Step 6: Final answer
    x = 12,942,636.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.