Home / 18,240.42-25,171.78-9,856.92

Finding the Fourth Proportional to 18,240.42, 25,171.78 and 9,856.92

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Solution

The fourth proportional to 18,240.42, 25,171.78 and 9,856.92 is: 13,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.42 : 25,171.78 = 9,856.92 : x
  2. Step 2: Convert to fraction form
    18,240.42/25,171.78 = 9,856.92/x
  3. Step 3: Cross multiply
    18,240.42x = 25,171.78 × 9,856.92
  4. Step 4: Simplify right side
    18,240.42x = 248,116,221.72
  5. Step 5: Solve for x
    x = 248,116,221.72/18,240.42
  6. Step 6: Final answer
    x = 13,602.55

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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.