Home / 8,238.08-12,342.24-5,458.16

Finding the Fourth Proportional to 8,238.08, 12,342.24 and 5,458.16

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Solution

The fourth proportional to 8,238.08, 12,342.24 and 5,458.16 is: 8,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.08 : 12,342.24 = 5,458.16 : x
  2. Step 2: Convert to fraction form
    8,238.08/12,342.24 = 5,458.16/x
  3. Step 3: Cross multiply
    8,238.08x = 12,342.24 × 5,458.16
  4. Step 4: Simplify right side
    8,238.08x = 67,365,920.68
  5. Step 5: Solve for x
    x = 67,365,920.68/8,238.08
  6. Step 6: Final answer
    x = 8,177.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.