Home / 8,439.33-11,643.45-5,458.92

Finding the Fourth Proportional to 8,439.33, 11,643.45 and 5,458.92

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Solution

The fourth proportional to 8,439.33, 11,643.45 and 5,458.92 is: 7,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.33 : 11,643.45 = 5,458.92 : x
  2. Step 2: Convert to fraction form
    8,439.33/11,643.45 = 5,458.92/x
  3. Step 3: Cross multiply
    8,439.33x = 11,643.45 × 5,458.92
  4. Step 4: Simplify right side
    8,439.33x = 63,560,662.07
  5. Step 5: Solve for x
    x = 63,560,662.07/8,439.33
  6. Step 6: Final answer
    x = 7,531.48

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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.