Home / 10,877.20-16,272.60-9,432.40

Finding the Fourth Proportional to 10,877.20, 16,272.60 and 9,432.40

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Solution

The fourth proportional to 10,877.20, 16,272.60 and 9,432.40 is: 14,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.20 : 16,272.60 = 9,432.40 : x
  2. Step 2: Convert to fraction form
    10,877.20/16,272.60 = 9,432.40/x
  3. Step 3: Cross multiply
    10,877.20x = 16,272.60 × 9,432.40
  4. Step 4: Simplify right side
    10,877.20x = 153,489,672.24
  5. Step 5: Solve for x
    x = 153,489,672.24/10,877.20
  6. Step 6: Final answer
    x = 14,111.14

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1.5x scale

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.