Home / 10,553.78-15,824.66-4,306.47

Finding the Fourth Proportional to 10,553.78, 15,824.66 and 4,306.47

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Solution

The fourth proportional to 10,553.78, 15,824.66 and 4,306.47 is: 6,457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.78 : 15,824.66 = 4,306.47 : x
  2. Step 2: Convert to fraction form
    10,553.78/15,824.66 = 4,306.47/x
  3. Step 3: Cross multiply
    10,553.78x = 15,824.66 × 4,306.47
  4. Step 4: Simplify right side
    10,553.78x = 68,148,402.02
  5. Step 5: Solve for x
    x = 68,148,402.02/10,553.78
  6. Step 6: Final answer
    x = 6,457.25

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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.