Home / 8,155.28-11,252.25-5,170.02

Finding the Fourth Proportional to 8,155.28, 11,252.25 and 5,170.02

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Solution

The fourth proportional to 8,155.28, 11,252.25 and 5,170.02 is: 7,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.28 : 11,252.25 = 5,170.02 : x
  2. Step 2: Convert to fraction form
    8,155.28/11,252.25 = 5,170.02/x
  3. Step 3: Cross multiply
    8,155.28x = 11,252.25 × 5,170.02
  4. Step 4: Simplify right side
    8,155.28x = 58,174,357.55
  5. Step 5: Solve for x
    x = 58,174,357.55/8,155.28
  6. Step 6: Final answer
    x = 7,133.34

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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.