Home / 12,545.36-18,818.04-3,780.32

Finding the Fourth Proportional to 12,545.36, 18,818.04 and 3,780.32

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Solution

The fourth proportional to 12,545.36, 18,818.04 and 3,780.32 is: 5,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.36 : 18,818.04 = 3,780.32 : x
  2. Step 2: Convert to fraction form
    12,545.36/18,818.04 = 3,780.32/x
  3. Step 3: Cross multiply
    12,545.36x = 18,818.04 × 3,780.32
  4. Step 4: Simplify right side
    12,545.36x = 71,138,212.97
  5. Step 5: Solve for x
    x = 71,138,212.97/12,545.36
  6. Step 6: Final answer
    x = 5,670.48

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Similar ratio
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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.