Home / 8,317.22-12,472.16-3,119.45

Finding the Fourth Proportional to 8,317.22, 12,472.16 and 3,119.45

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Solution

The fourth proportional to 8,317.22, 12,472.16 and 3,119.45 is: 4,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.22 : 12,472.16 = 3,119.45 : x
  2. Step 2: Convert to fraction form
    8,317.22/12,472.16 = 3,119.45/x
  3. Step 3: Cross multiply
    8,317.22x = 12,472.16 × 3,119.45
  4. Step 4: Simplify right side
    8,317.22x = 38,906,201.55
  5. Step 5: Solve for x
    x = 38,906,201.55/8,317.22
  6. Step 6: Final answer
    x = 4,677.79

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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.