Home / 18,215.60-25,137.62-10,257.96

Finding the Fourth Proportional to 18,215.60, 25,137.62 and 10,257.96

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Solution

The fourth proportional to 18,215.60, 25,137.62 and 10,257.96 is: 14,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.60 : 25,137.62 = 10,257.96 : x
  2. Step 2: Convert to fraction form
    18,215.60/25,137.62 = 10,257.96/x
  3. Step 3: Cross multiply
    18,215.60x = 25,137.62 × 10,257.96
  4. Step 4: Simplify right side
    18,215.60x = 257,860,649.17
  5. Step 5: Solve for x
    x = 257,860,649.17/18,215.60
  6. Step 6: Final answer
    x = 14,156.04

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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.