Home / 19,092.60-28,638.90-13,187.70

Finding the Fourth Proportional to 19,092.60, 28,638.90 and 13,187.70

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Solution

The fourth proportional to 19,092.60, 28,638.90 and 13,187.70 is: 19,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,092.60 : 28,638.90 = 13,187.70 : x
  2. Step 2: Convert to fraction form
    19,092.60/28,638.90 = 13,187.70/x
  3. Step 3: Cross multiply
    19,092.60x = 28,638.90 × 13,187.70
  4. Step 4: Simplify right side
    19,092.60x = 377,681,221.53
  5. Step 5: Solve for x
    x = 377,681,221.53/19,092.60
  6. Step 6: Final answer
    x = 19,781.55

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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.