Home / 7,180.56-10,765.35-6,447.92

Finding the Fourth Proportional to 7,180.56, 10,765.35 and 6,447.92

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Solution

The fourth proportional to 7,180.56, 10,765.35 and 6,447.92 is: 9,666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.56 : 10,765.35 = 6,447.92 : x
  2. Step 2: Convert to fraction form
    7,180.56/10,765.35 = 6,447.92/x
  3. Step 3: Cross multiply
    7,180.56x = 10,765.35 × 6,447.92
  4. Step 4: Simplify right side
    7,180.56x = 69,414,061.75
  5. Step 5: Solve for x
    x = 69,414,061.75/7,180.56
  6. Step 6: Final answer
    x = 9,666.94

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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.