Home / 15,138.82-22,711.65-4,609.79

Finding the Fourth Proportional to 15,138.82, 22,711.65 and 4,609.79

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Solution

The fourth proportional to 15,138.82, 22,711.65 and 4,609.79 is: 6,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.82 : 22,711.65 = 4,609.79 : x
  2. Step 2: Convert to fraction form
    15,138.82/22,711.65 = 4,609.79/x
  3. Step 3: Cross multiply
    15,138.82x = 22,711.65 × 4,609.79
  4. Step 4: Simplify right side
    15,138.82x = 104,695,859.91
  5. Step 5: Solve for x
    x = 104,695,859.91/15,138.82
  6. Step 6: Final answer
    x = 6,915.72

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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.