Home / 18,311.47-25,270.11-9,927.97

Finding the Fourth Proportional to 18,311.47, 25,270.11 and 9,927.97

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Solution

The fourth proportional to 18,311.47, 25,270.11 and 9,927.97 is: 13,700.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.47 : 25,270.11 = 9,927.97 : x
  2. Step 2: Convert to fraction form
    18,311.47/25,270.11 = 9,927.97/x
  3. Step 3: Cross multiply
    18,311.47x = 25,270.11 × 9,927.97
  4. Step 4: Simplify right side
    18,311.47x = 250,880,830.80
  5. Step 5: Solve for x
    x = 250,880,830.80/18,311.47
  6. Step 6: Final answer
    x = 13,700.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.