Home / 11,337.60-17,006.40-8,572.80

Finding the Fourth Proportional to 11,337.60, 17,006.40 and 8,572.80

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Solution

The fourth proportional to 11,337.60, 17,006.40 and 8,572.80 is: 12,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.60 : 17,006.40 = 8,572.80 : x
  2. Step 2: Convert to fraction form
    11,337.60/17,006.40 = 8,572.80/x
  3. Step 3: Cross multiply
    11,337.60x = 17,006.40 × 8,572.80
  4. Step 4: Simplify right side
    11,337.60x = 145,792,465.92
  5. Step 5: Solve for x
    x = 145,792,465.92/11,337.60
  6. Step 6: Final answer
    x = 12,859.20

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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.