Home / 13,432.38-18,536.22-7,463.76

Finding the Fourth Proportional to 13,432.38, 18,536.22 and 7,463.76

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Solution

The fourth proportional to 13,432.38, 18,536.22 and 7,463.76 is: 10,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.38 : 18,536.22 = 7,463.76 : x
  2. Step 2: Convert to fraction form
    13,432.38/18,536.22 = 7,463.76/x
  3. Step 3: Cross multiply
    13,432.38x = 18,536.22 × 7,463.76
  4. Step 4: Simplify right side
    13,432.38x = 138,349,897.39
  5. Step 5: Solve for x
    x = 138,349,897.39/13,432.38
  6. Step 6: Final answer
    x = 10,299.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.