Home / 9,329.42-12,873.85-5,351.78

Finding the Fourth Proportional to 9,329.42, 12,873.85 and 5,351.78

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Solution

The fourth proportional to 9,329.42, 12,873.85 and 5,351.78 is: 7,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.42 : 12,873.85 = 5,351.78 : x
  2. Step 2: Convert to fraction form
    9,329.42/12,873.85 = 5,351.78/x
  3. Step 3: Cross multiply
    9,329.42x = 12,873.85 × 5,351.78
  4. Step 4: Simplify right side
    9,329.42x = 68,897,935.20
  5. Step 5: Solve for x
    x = 68,897,935.20/9,329.42
  6. Step 6: Final answer
    x = 7,385.02

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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.