Home / 12,325.12-18,499.56-11,659.12

Finding the Fourth Proportional to 12,325.12, 18,499.56 and 11,659.12

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Solution

The fourth proportional to 12,325.12, 18,499.56 and 11,659.12 is: 17,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.12 : 18,499.56 = 11,659.12 : x
  2. Step 2: Convert to fraction form
    12,325.12/18,499.56 = 11,659.12/x
  3. Step 3: Cross multiply
    12,325.12x = 18,499.56 × 11,659.12
  4. Step 4: Simplify right side
    12,325.12x = 215,688,589.99
  5. Step 5: Solve for x
    x = 215,688,589.99/12,325.12
  6. Step 6: Final answer
    x = 17,499.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.