Home / 10,470.28-15,705.34-2,572.76

Finding the Fourth Proportional to 10,470.28, 15,705.34 and 2,572.76

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Solution

The fourth proportional to 10,470.28, 15,705.34 and 2,572.76 is: 3,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.28 : 15,705.34 = 2,572.76 : x
  2. Step 2: Convert to fraction form
    10,470.28/15,705.34 = 2,572.76/x
  3. Step 3: Cross multiply
    10,470.28x = 15,705.34 × 2,572.76
  4. Step 4: Simplify right side
    10,470.28x = 40,406,070.54
  5. Step 5: Solve for x
    x = 40,406,070.54/10,470.28
  6. Step 6: Final answer
    x = 3,859.12

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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.