Home / 9,514.13-13,129.29-5,740.42

Finding the Fourth Proportional to 9,514.13, 13,129.29 and 5,740.42

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Solution

The fourth proportional to 9,514.13, 13,129.29 and 5,740.42 is: 7,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,514.13 : 13,129.29 = 5,740.42 : x
  2. Step 2: Convert to fraction form
    9,514.13/13,129.29 = 5,740.42/x
  3. Step 3: Cross multiply
    9,514.13x = 13,129.29 × 5,740.42
  4. Step 4: Simplify right side
    9,514.13x = 75,367,630.70
  5. Step 5: Solve for x
    x = 75,367,630.70/9,514.13
  6. Step 6: Final answer
    x = 7,921.65

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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.