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Finding the Fourth Proportional to 16,618.81, 24,911.11 and 7,257.08

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Solution

The fourth proportional to 16,618.81, 24,911.11 and 7,257.08 is: 10,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.81 : 24,911.11 = 7,257.08 : x
  2. Step 2: Convert to fraction form
    16,618.81/24,911.11 = 7,257.08/x
  3. Step 3: Cross multiply
    16,618.81x = 24,911.11 × 7,257.08
  4. Step 4: Simplify right side
    16,618.81x = 180,781,918.16
  5. Step 5: Solve for x
    x = 180,781,918.16/16,618.81
  6. Step 6: Final answer
    x = 10,878.15

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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.