Home / 12,724.20-19,065.42-12,238.20

Finding the Fourth Proportional to 12,724.20, 19,065.42 and 12,238.20

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Solution

The fourth proportional to 12,724.20, 19,065.42 and 12,238.20 is: 18,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.20 : 19,065.42 = 12,238.20 : x
  2. Step 2: Convert to fraction form
    12,724.20/19,065.42 = 12,238.20/x
  3. Step 3: Cross multiply
    12,724.20x = 19,065.42 × 12,238.20
  4. Step 4: Simplify right side
    12,724.20x = 233,326,423.04
  5. Step 5: Solve for x
    x = 233,326,423.04/12,724.20
  6. Step 6: Final answer
    x = 18,337.22

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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.