Home / 12,545.32-18,817.98-3,780.52

Finding the Fourth Proportional to 12,545.32, 18,817.98 and 3,780.52

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Solution

The fourth proportional to 12,545.32, 18,817.98 and 3,780.52 is: 5,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.32 : 18,817.98 = 3,780.52 : x
  2. Step 2: Convert to fraction form
    12,545.32/18,817.98 = 3,780.52/x
  3. Step 3: Cross multiply
    12,545.32x = 18,817.98 × 3,780.52
  4. Step 4: Simplify right side
    12,545.32x = 71,141,749.75
  5. Step 5: Solve for x
    x = 71,141,749.75/12,545.32
  6. Step 6: Final answer
    x = 5,670.78

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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.