Home / 7,471.52-11,181.15-5,120.49

Finding the Fourth Proportional to 7,471.52, 11,181.15 and 5,120.49

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Solution

The fourth proportional to 7,471.52, 11,181.15 and 5,120.49 is: 7,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.52 : 11,181.15 = 5,120.49 : x
  2. Step 2: Convert to fraction form
    7,471.52/11,181.15 = 5,120.49/x
  3. Step 3: Cross multiply
    7,471.52x = 11,181.15 × 5,120.49
  4. Step 4: Simplify right side
    7,471.52x = 57,252,966.76
  5. Step 5: Solve for x
    x = 57,252,966.76/7,471.52
  6. Step 6: Final answer
    x = 7,662.83

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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.