Home / 9,013.26-12,438.28-5,475.78

Finding the Fourth Proportional to 9,013.26, 12,438.28 and 5,475.78

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Solution

The fourth proportional to 9,013.26, 12,438.28 and 5,475.78 is: 7,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.26 : 12,438.28 = 5,475.78 : x
  2. Step 2: Convert to fraction form
    9,013.26/12,438.28 = 5,475.78/x
  3. Step 3: Cross multiply
    9,013.26x = 12,438.28 × 5,475.78
  4. Step 4: Simplify right side
    9,013.26x = 68,109,284.86
  5. Step 5: Solve for x
    x = 68,109,284.86/9,013.26
  6. Step 6: Final answer
    x = 7,556.56

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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.