Home / 10,620.32-15,905.76-10,251.20

Finding the Fourth Proportional to 10,620.32, 15,905.76 and 10,251.20

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Solution

The fourth proportional to 10,620.32, 15,905.76 and 10,251.20 is: 15,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.32 : 15,905.76 = 10,251.20 : x
  2. Step 2: Convert to fraction form
    10,620.32/15,905.76 = 10,251.20/x
  3. Step 3: Cross multiply
    10,620.32x = 15,905.76 × 10,251.20
  4. Step 4: Simplify right side
    10,620.32x = 163,053,126.91
  5. Step 5: Solve for x
    x = 163,053,126.91/10,620.32
  6. Step 6: Final answer
    x = 15,352.94

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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.