Home / 8,127.28-12,176.91-5,488.96

Finding the Fourth Proportional to 8,127.28, 12,176.91 and 5,488.96

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Solution

The fourth proportional to 8,127.28, 12,176.91 and 5,488.96 is: 8,223.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.28 : 12,176.91 = 5,488.96 : x
  2. Step 2: Convert to fraction form
    8,127.28/12,176.91 = 5,488.96/x
  3. Step 3: Cross multiply
    8,127.28x = 12,176.91 × 5,488.96
  4. Step 4: Simplify right side
    8,127.28x = 66,838,571.91
  5. Step 5: Solve for x
    x = 66,838,571.91/8,127.28
  6. Step 6: Final answer
    x = 8,223.98

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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.