Home / 18,256.28-25,193.61-9,872.78

Finding the Fourth Proportional to 18,256.28, 25,193.61 and 9,872.78

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Solution

The fourth proportional to 18,256.28, 25,193.61 and 9,872.78 is: 13,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.28 : 25,193.61 = 9,872.78 : x
  2. Step 2: Convert to fraction form
    18,256.28/25,193.61 = 9,872.78/x
  3. Step 3: Cross multiply
    18,256.28x = 25,193.61 × 9,872.78
  4. Step 4: Simplify right side
    18,256.28x = 248,730,842.97
  5. Step 5: Solve for x
    x = 248,730,842.97/18,256.28
  6. Step 6: Final answer
    x = 13,624.40

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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.