Home / 18,788.14-28,184.95-5,641.55

Finding the Fourth Proportional to 18,788.14, 28,184.95 and 5,641.55

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Solution

The fourth proportional to 18,788.14, 28,184.95 and 5,641.55 is: 8,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.14 : 28,184.95 = 5,641.55 : x
  2. Step 2: Convert to fraction form
    18,788.14/28,184.95 = 5,641.55/x
  3. Step 3: Cross multiply
    18,788.14x = 28,184.95 × 5,641.55
  4. Step 4: Simplify right side
    18,788.14x = 159,006,663.75
  5. Step 5: Solve for x
    x = 159,006,663.75/18,788.14
  6. Step 6: Final answer
    x = 8,463.14

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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.