Home / 10,487.28-15,721.16-5,552.76

Finding the Fourth Proportional to 10,487.28, 15,721.16 and 5,552.76

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Solution

The fourth proportional to 10,487.28, 15,721.16 and 5,552.76 is: 8,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.28 : 15,721.16 = 5,552.76 : x
  2. Step 2: Convert to fraction form
    10,487.28/15,721.16 = 5,552.76/x
  3. Step 3: Cross multiply
    10,487.28x = 15,721.16 × 5,552.76
  4. Step 4: Simplify right side
    10,487.28x = 87,295,828.40
  5. Step 5: Solve for x
    x = 87,295,828.40/10,487.28
  6. Step 6: Final answer
    x = 8,323.97

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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.