Home / 8,255.04-11,387.34-5,422.86

Finding the Fourth Proportional to 8,255.04, 11,387.34 and 5,422.86

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Solution

The fourth proportional to 8,255.04, 11,387.34 and 5,422.86 is: 7,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.04 : 11,387.34 = 5,422.86 : x
  2. Step 2: Convert to fraction form
    8,255.04/11,387.34 = 5,422.86/x
  3. Step 3: Cross multiply
    8,255.04x = 11,387.34 × 5,422.86
  4. Step 4: Simplify right side
    8,255.04x = 61,751,950.59
  5. Step 5: Solve for x
    x = 61,751,950.59/8,255.04
  6. Step 6: Final answer
    x = 7,480.52

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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.