Home / 8,640.32-11,926.56-5,991.24

Finding the Fourth Proportional to 8,640.32, 11,926.56 and 5,991.24

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Solution

The fourth proportional to 8,640.32, 11,926.56 and 5,991.24 is: 8,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.32 : 11,926.56 = 5,991.24 : x
  2. Step 2: Convert to fraction form
    8,640.32/11,926.56 = 5,991.24/x
  3. Step 3: Cross multiply
    8,640.32x = 11,926.56 × 5,991.24
  4. Step 4: Simplify right side
    8,640.32x = 71,454,883.33
  5. Step 5: Solve for x
    x = 71,454,883.33/8,640.32
  6. Step 6: Final answer
    x = 8,269.93

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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.