Home / 18,330.28-25,295.79-9,946.78

Finding the Fourth Proportional to 18,330.28, 25,295.79 and 9,946.78

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Solution

The fourth proportional to 18,330.28, 25,295.79 and 9,946.78 is: 13,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.28 : 25,295.79 = 9,946.78 : x
  2. Step 2: Convert to fraction form
    18,330.28/25,295.79 = 9,946.78/x
  3. Step 3: Cross multiply
    18,330.28x = 25,295.79 × 9,946.78
  4. Step 4: Simplify right side
    18,330.28x = 251,611,658.06
  5. Step 5: Solve for x
    x = 251,611,658.06/18,330.28
  6. Step 6: Final answer
    x = 13,726.56

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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.