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Finding the Fourth Proportional to 8,612.04, 12,918.06 and 2,372.10

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Solution

The fourth proportional to 8,612.04, 12,918.06 and 2,372.10 is: 3,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.04 : 12,918.06 = 2,372.10 : x
  2. Step 2: Convert to fraction form
    8,612.04/12,918.06 = 2,372.10/x
  3. Step 3: Cross multiply
    8,612.04x = 12,918.06 × 2,372.10
  4. Step 4: Simplify right side
    8,612.04x = 30,642,930.13
  5. Step 5: Solve for x
    x = 30,642,930.13/8,612.04
  6. Step 6: Final answer
    x = 3,558.15

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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.