Home / 13,631.97-20,451.02-4,747.71

Finding the Fourth Proportional to 13,631.97, 20,451.02 and 4,747.71

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Solution

The fourth proportional to 13,631.97, 20,451.02 and 4,747.71 is: 7,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.97 : 20,451.02 = 4,747.71 : x
  2. Step 2: Convert to fraction form
    13,631.97/20,451.02 = 4,747.71/x
  3. Step 3: Cross multiply
    13,631.97x = 20,451.02 × 4,747.71
  4. Step 4: Simplify right side
    13,631.97x = 97,095,411.73
  5. Step 5: Solve for x
    x = 97,095,411.73/13,631.97
  6. Step 6: Final answer
    x = 7,122.63

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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.