Home / 17,439.40-26,144.46-12,158.88

Finding the Fourth Proportional to 17,439.40, 26,144.46 and 12,158.88

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Solution

The fourth proportional to 17,439.40, 26,144.46 and 12,158.88 is: 18,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,439.40 : 26,144.46 = 12,158.88 : x
  2. Step 2: Convert to fraction form
    17,439.40/26,144.46 = 12,158.88/x
  3. Step 3: Cross multiply
    17,439.40x = 26,144.46 × 12,158.88
  4. Step 4: Simplify right side
    17,439.40x = 317,887,351.80
  5. Step 5: Solve for x
    x = 317,887,351.80/17,439.40
  6. Step 6: Final answer
    x = 18,228.11

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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.