Home / 15,287.73-21,088.11-9,613.50

Finding the Fourth Proportional to 15,287.73, 21,088.11 and 9,613.50

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Solution

The fourth proportional to 15,287.73, 21,088.11 and 9,613.50 is: 13,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.73 : 21,088.11 = 9,613.50 : x
  2. Step 2: Convert to fraction form
    15,287.73/21,088.11 = 9,613.50/x
  3. Step 3: Cross multiply
    15,287.73x = 21,088.11 × 9,613.50
  4. Step 4: Simplify right side
    15,287.73x = 202,730,440.04
  5. Step 5: Solve for x
    x = 202,730,440.04/15,287.73
  6. Step 6: Final answer
    x = 13,260.99

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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.