Home / 11,147.32-15,385.26-7,609.24

Finding the Fourth Proportional to 11,147.32, 15,385.26 and 7,609.24

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Solution

The fourth proportional to 11,147.32, 15,385.26 and 7,609.24 is: 10,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.32 : 15,385.26 = 7,609.24 : x
  2. Step 2: Convert to fraction form
    11,147.32/15,385.26 = 7,609.24/x
  3. Step 3: Cross multiply
    11,147.32x = 15,385.26 × 7,609.24
  4. Step 4: Simplify right side
    11,147.32x = 117,070,135.80
  5. Step 5: Solve for x
    x = 117,070,135.80/11,147.32
  6. Step 6: Final answer
    x = 10,502.09

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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.