Home / 7,421.70-11,132.55-5,769.30

Finding the Fourth Proportional to 7,421.70, 11,132.55 and 5,769.30

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Solution

The fourth proportional to 7,421.70, 11,132.55 and 5,769.30 is: 8,653.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.70 : 11,132.55 = 5,769.30 : x
  2. Step 2: Convert to fraction form
    7,421.70/11,132.55 = 5,769.30/x
  3. Step 3: Cross multiply
    7,421.70x = 11,132.55 × 5,769.30
  4. Step 4: Simplify right side
    7,421.70x = 64,227,020.72
  5. Step 5: Solve for x
    x = 64,227,020.72/7,421.70
  6. Step 6: Final answer
    x = 8,653.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.