Home / 18,240.38-25,171.72-9,856.88

Finding the Fourth Proportional to 18,240.38, 25,171.72 and 9,856.88

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Solution

The fourth proportional to 18,240.38, 25,171.72 and 9,856.88 is: 13,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.38 : 25,171.72 = 9,856.88 : x
  2. Step 2: Convert to fraction form
    18,240.38/25,171.72 = 9,856.88/x
  3. Step 3: Cross multiply
    18,240.38x = 25,171.72 × 9,856.88
  4. Step 4: Simplify right side
    18,240.38x = 248,114,623.43
  5. Step 5: Solve for x
    x = 248,114,623.43/18,240.38
  6. Step 6: Final answer
    x = 13,602.49

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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.