Home / 8,167.20-11,268.28-5,646.36

Finding the Fourth Proportional to 8,167.20, 11,268.28 and 5,646.36

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Solution

The fourth proportional to 8,167.20, 11,268.28 and 5,646.36 is: 7,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.20 : 11,268.28 = 5,646.36 : x
  2. Step 2: Convert to fraction form
    8,167.20/11,268.28 = 5,646.36/x
  3. Step 3: Cross multiply
    8,167.20x = 11,268.28 × 5,646.36
  4. Step 4: Simplify right side
    8,167.20x = 63,624,765.46
  5. Step 5: Solve for x
    x = 63,624,765.46/8,167.20
  6. Step 6: Final answer
    x = 7,790.28

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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.