Home / 9,330.56-12,876.24-5,138.88

Finding the Fourth Proportional to 9,330.56, 12,876.24 and 5,138.88

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Solution

The fourth proportional to 9,330.56, 12,876.24 and 5,138.88 is: 7,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.56 : 12,876.24 = 5,138.88 : x
  2. Step 2: Convert to fraction form
    9,330.56/12,876.24 = 5,138.88/x
  3. Step 3: Cross multiply
    9,330.56x = 12,876.24 × 5,138.88
  4. Step 4: Simplify right side
    9,330.56x = 66,169,452.21
  5. Step 5: Solve for x
    x = 66,169,452.21/9,330.56
  6. Step 6: Final answer
    x = 7,091.69

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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.