Home / 13,432.60-18,531.03-8,951.99

Finding the Fourth Proportional to 13,432.60, 18,531.03 and 8,951.99

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Solution

The fourth proportional to 13,432.60, 18,531.03 and 8,951.99 is: 12,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.60 : 18,531.03 = 8,951.99 : x
  2. Step 2: Convert to fraction form
    13,432.60/18,531.03 = 8,951.99/x
  3. Step 3: Cross multiply
    13,432.60x = 18,531.03 × 8,951.99
  4. Step 4: Simplify right side
    13,432.60x = 165,889,595.25
  5. Step 5: Solve for x
    x = 165,889,595.25/13,432.60
  6. Step 6: Final answer
    x = 12,349.78

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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.