Home / 8,686.26-11,983.12-5,327.72

Finding the Fourth Proportional to 8,686.26, 11,983.12 and 5,327.72

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Solution

The fourth proportional to 8,686.26, 11,983.12 and 5,327.72 is: 7,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.26 : 11,983.12 = 5,327.72 : x
  2. Step 2: Convert to fraction form
    8,686.26/11,983.12 = 5,327.72/x
  3. Step 3: Cross multiply
    8,686.26x = 11,983.12 × 5,327.72
  4. Step 4: Simplify right side
    8,686.26x = 63,842,708.09
  5. Step 5: Solve for x
    x = 63,842,708.09/8,686.26
  6. Step 6: Final answer
    x = 7,349.85

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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.