Home / 8,182.86-11,288.48-5,531.20

Finding the Fourth Proportional to 8,182.86, 11,288.48 and 5,531.20

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Solution

The fourth proportional to 8,182.86, 11,288.48 and 5,531.20 is: 7,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.86 : 11,288.48 = 5,531.20 : x
  2. Step 2: Convert to fraction form
    8,182.86/11,288.48 = 5,531.20/x
  3. Step 3: Cross multiply
    8,182.86x = 11,288.48 × 5,531.20
  4. Step 4: Simplify right side
    8,182.86x = 62,438,840.58
  5. Step 5: Solve for x
    x = 62,438,840.58/8,182.86
  6. Step 6: Final answer
    x = 7,630.44

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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.