Home / 11,089.20-15,306.34-7,261.42

Finding the Fourth Proportional to 11,089.20, 15,306.34 and 7,261.42

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Solution

The fourth proportional to 11,089.20, 15,306.34 and 7,261.42 is: 10,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.20 : 15,306.34 = 7,261.42 : x
  2. Step 2: Convert to fraction form
    11,089.20/15,306.34 = 7,261.42/x
  3. Step 3: Cross multiply
    11,089.20x = 15,306.34 × 7,261.42
  4. Step 4: Simplify right side
    11,089.20x = 111,145,763.40
  5. Step 5: Solve for x
    x = 111,145,763.40/11,089.20
  6. Step 6: Final answer
    x = 10,022.88

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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.