Home / 13,555.28-20,287.80-10,250.17

Finding the Fourth Proportional to 13,555.28, 20,287.80 and 10,250.17

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Solution

The fourth proportional to 13,555.28, 20,287.80 and 10,250.17 is: 15,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.28 : 20,287.80 = 10,250.17 : x
  2. Step 2: Convert to fraction form
    13,555.28/20,287.80 = 10,250.17/x
  3. Step 3: Cross multiply
    13,555.28x = 20,287.80 × 10,250.17
  4. Step 4: Simplify right side
    13,555.28x = 207,953,348.21
  5. Step 5: Solve for x
    x = 207,953,348.21/13,555.28
  6. Step 6: Final answer
    x = 15,341.13

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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.