Home / 10,423.60-15,638.60-8,233.20

Finding the Fourth Proportional to 10,423.60, 15,638.60 and 8,233.20

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Solution

The fourth proportional to 10,423.60, 15,638.60 and 8,233.20 is: 12,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.60 : 15,638.60 = 8,233.20 : x
  2. Step 2: Convert to fraction form
    10,423.60/15,638.60 = 8,233.20/x
  3. Step 3: Cross multiply
    10,423.60x = 15,638.60 × 8,233.20
  4. Step 4: Simplify right side
    10,423.60x = 128,755,721.52
  5. Step 5: Solve for x
    x = 128,755,721.52/10,423.60
  6. Step 6: Final answer
    x = 12,352.33

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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.