Home / 18,217.12-25,138.48-10,258.88

Finding the Fourth Proportional to 18,217.12, 25,138.48 and 10,258.88

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Solution

The fourth proportional to 18,217.12, 25,138.48 and 10,258.88 is: 14,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.12 : 25,138.48 = 10,258.88 : x
  2. Step 2: Convert to fraction form
    18,217.12/25,138.48 = 10,258.88/x
  3. Step 3: Cross multiply
    18,217.12x = 25,138.48 × 10,258.88
  4. Step 4: Simplify right side
    18,217.12x = 257,892,649.70
  5. Step 5: Solve for x
    x = 257,892,649.70/18,217.12
  6. Step 6: Final answer
    x = 14,156.61

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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.