Home / 6,471.20-9,708.90-5,313.92

Finding the Fourth Proportional to 6,471.20, 9,708.90 and 5,313.92

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Solution

The fourth proportional to 6,471.20, 9,708.90 and 5,313.92 is: 7,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.20 : 9,708.90 = 5,313.92 : x
  2. Step 2: Convert to fraction form
    6,471.20/9,708.90 = 5,313.92/x
  3. Step 3: Cross multiply
    6,471.20x = 9,708.90 × 5,313.92
  4. Step 4: Simplify right side
    6,471.20x = 51,592,317.89
  5. Step 5: Solve for x
    x = 51,592,317.89/6,471.20
  6. Step 6: Final answer
    x = 7,972.60

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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.