Home / 10,998.66-15,175.53-6,218.70

Finding the Fourth Proportional to 10,998.66, 15,175.53 and 6,218.70

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Solution

The fourth proportional to 10,998.66, 15,175.53 and 6,218.70 is: 8,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.66 : 15,175.53 = 6,218.70 : x
  2. Step 2: Convert to fraction form
    10,998.66/15,175.53 = 6,218.70/x
  3. Step 3: Cross multiply
    10,998.66x = 15,175.53 × 6,218.70
  4. Step 4: Simplify right side
    10,998.66x = 94,372,068.41
  5. Step 5: Solve for x
    x = 94,372,068.41/10,998.66
  6. Step 6: Final answer
    x = 8,580.32

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.