Home / 8,522.24-12,782.28-3,331.76

Finding the Fourth Proportional to 8,522.24, 12,782.28 and 3,331.76

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Solution

The fourth proportional to 8,522.24, 12,782.28 and 3,331.76 is: 4,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.24 : 12,782.28 = 3,331.76 : x
  2. Step 2: Convert to fraction form
    8,522.24/12,782.28 = 3,331.76/x
  3. Step 3: Cross multiply
    8,522.24x = 12,782.28 × 3,331.76
  4. Step 4: Simplify right side
    8,522.24x = 42,587,489.21
  5. Step 5: Solve for x
    x = 42,587,489.21/8,522.24
  6. Step 6: Final answer
    x = 4,997.22

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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.