Home / 9,401.11-12,972.85-5,151.49

Finding the Fourth Proportional to 9,401.11, 12,972.85 and 5,151.49

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Solution

The fourth proportional to 9,401.11, 12,972.85 and 5,151.49 is: 7,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.11 : 12,972.85 = 5,151.49 : x
  2. Step 2: Convert to fraction form
    9,401.11/12,972.85 = 5,151.49/x
  3. Step 3: Cross multiply
    9,401.11x = 12,972.85 × 5,151.49
  4. Step 4: Simplify right side
    9,401.11x = 66,829,461.74
  5. Step 5: Solve for x
    x = 66,829,461.74/9,401.11
  6. Step 6: Final answer
    x = 7,108.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.