Home / 6,705.28-9,253.44-3,909.76

Finding the Fourth Proportional to 6,705.28, 9,253.44 and 3,909.76

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Solution

The fourth proportional to 6,705.28, 9,253.44 and 3,909.76 is: 5,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,705.28 : 9,253.44 = 3,909.76 : x
  2. Step 2: Convert to fraction form
    6,705.28/9,253.44 = 3,909.76/x
  3. Step 3: Cross multiply
    6,705.28x = 9,253.44 × 3,909.76
  4. Step 4: Simplify right side
    6,705.28x = 36,178,729.57
  5. Step 5: Solve for x
    x = 36,178,729.57/6,705.28
  6. Step 6: Final answer
    x = 5,395.56

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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.