Home / 18,499.14-25,518.42-11,420.52

Finding the Fourth Proportional to 18,499.14, 25,518.42 and 11,420.52

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Solution

The fourth proportional to 18,499.14, 25,518.42 and 11,420.52 is: 15,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.14 : 25,518.42 = 11,420.52 : x
  2. Step 2: Convert to fraction form
    18,499.14/25,518.42 = 11,420.52/x
  3. Step 3: Cross multiply
    18,499.14x = 25,518.42 × 11,420.52
  4. Step 4: Simplify right side
    18,499.14x = 291,433,625.98
  5. Step 5: Solve for x
    x = 291,433,625.98/18,499.14
  6. Step 6: Final answer
    x = 15,753.90

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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.