Home / 8,937.78-12,332.34-5,401.19

Finding the Fourth Proportional to 8,937.78, 12,332.34 and 5,401.19

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Solution

The fourth proportional to 8,937.78, 12,332.34 and 5,401.19 is: 7,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.78 : 12,332.34 = 5,401.19 : x
  2. Step 2: Convert to fraction form
    8,937.78/12,332.34 = 5,401.19/x
  3. Step 3: Cross multiply
    8,937.78x = 12,332.34 × 5,401.19
  4. Step 4: Simplify right side
    8,937.78x = 66,609,249.82
  5. Step 5: Solve for x
    x = 66,609,249.82/8,937.78
  6. Step 6: Final answer
    x = 7,452.55

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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.