Home / 18,432.76-25,429.12-12,462.24

Finding the Fourth Proportional to 18,432.76, 25,429.12 and 12,462.24

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Solution

The fourth proportional to 18,432.76, 25,429.12 and 12,462.24 is: 17,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.76 : 25,429.12 = 12,462.24 : x
  2. Step 2: Convert to fraction form
    18,432.76/25,429.12 = 12,462.24/x
  3. Step 3: Cross multiply
    18,432.76x = 25,429.12 × 12,462.24
  4. Step 4: Simplify right side
    18,432.76x = 316,903,796.43
  5. Step 5: Solve for x
    x = 316,903,796.43/18,432.76
  6. Step 6: Final answer
    x = 17,192.42

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1.5x scale

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.