Home / 18,746.78-28,120.17-4,895.66

Finding the Fourth Proportional to 18,746.78, 28,120.17 and 4,895.66

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Solution

The fourth proportional to 18,746.78, 28,120.17 and 4,895.66 is: 7,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.78 : 28,120.17 = 4,895.66 : x
  2. Step 2: Convert to fraction form
    18,746.78/28,120.17 = 4,895.66/x
  3. Step 3: Cross multiply
    18,746.78x = 28,120.17 × 4,895.66
  4. Step 4: Simplify right side
    18,746.78x = 137,666,791.46
  5. Step 5: Solve for x
    x = 137,666,791.46/18,746.78
  6. Step 6: Final answer
    x = 7,343.49

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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.