Home / 7,219.28-9,963.27-5,708.88

Finding the Fourth Proportional to 7,219.28, 9,963.27 and 5,708.88

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Solution

The fourth proportional to 7,219.28, 9,963.27 and 5,708.88 is: 7,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.28 : 9,963.27 = 5,708.88 : x
  2. Step 2: Convert to fraction form
    7,219.28/9,963.27 = 5,708.88/x
  3. Step 3: Cross multiply
    7,219.28x = 9,963.27 × 5,708.88
  4. Step 4: Simplify right side
    7,219.28x = 56,879,112.84
  5. Step 5: Solve for x
    x = 56,879,112.84/7,219.28
  6. Step 6: Final answer
    x = 7,878.78

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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.