Home / 18,139.55-27,209.32-6,452.87

Finding the Fourth Proportional to 18,139.55, 27,209.32 and 6,452.87

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Solution

The fourth proportional to 18,139.55, 27,209.32 and 6,452.87 is: 9,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.55 : 27,209.32 = 6,452.87 : x
  2. Step 2: Convert to fraction form
    18,139.55/27,209.32 = 6,452.87/x
  3. Step 3: Cross multiply
    18,139.55x = 27,209.32 × 6,452.87
  4. Step 4: Simplify right side
    18,139.55x = 175,578,052.57
  5. Step 5: Solve for x
    x = 175,578,052.57/18,139.55
  6. Step 6: Final answer
    x = 9,679.30

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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.