Home / 10,345.92-15,505.92-5,153.28

Finding the Fourth Proportional to 10,345.92, 15,505.92 and 5,153.28

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Solution

The fourth proportional to 10,345.92, 15,505.92 and 5,153.28 is: 7,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.92 : 15,505.92 = 5,153.28 : x
  2. Step 2: Convert to fraction form
    10,345.92/15,505.92 = 5,153.28/x
  3. Step 3: Cross multiply
    10,345.92x = 15,505.92 × 5,153.28
  4. Step 4: Simplify right side
    10,345.92x = 79,906,347.42
  5. Step 5: Solve for x
    x = 79,906,347.42/10,345.92
  6. Step 6: Final answer
    x = 7,723.46

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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.