Home / 8,931.24-13,397.90-3,388.73

Finding the Fourth Proportional to 8,931.24, 13,397.90 and 3,388.73

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Solution

The fourth proportional to 8,931.24, 13,397.90 and 3,388.73 is: 5,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.24 : 13,397.90 = 3,388.73 : x
  2. Step 2: Convert to fraction form
    8,931.24/13,397.90 = 3,388.73/x
  3. Step 3: Cross multiply
    8,931.24x = 13,397.90 × 3,388.73
  4. Step 4: Simplify right side
    8,931.24x = 45,401,781.73
  5. Step 5: Solve for x
    x = 45,401,781.73/8,931.24
  6. Step 6: Final answer
    x = 5,083.48

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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.