Home / 13,132.50-18,117.45-8,658.33

Finding the Fourth Proportional to 13,132.50, 18,117.45 and 8,658.33

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Solution

The fourth proportional to 13,132.50, 18,117.45 and 8,658.33 is: 11,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.50 : 18,117.45 = 8,658.33 : x
  2. Step 2: Convert to fraction form
    13,132.50/18,117.45 = 8,658.33/x
  3. Step 3: Cross multiply
    13,132.50x = 18,117.45 × 8,658.33
  4. Step 4: Simplify right side
    13,132.50x = 156,866,860.86
  5. Step 5: Solve for x
    x = 156,866,860.86/13,132.50
  6. Step 6: Final answer
    x = 11,944.94

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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.