Home / 8,220.76-12,332.31-2,672.32

Finding the Fourth Proportional to 8,220.76, 12,332.31 and 2,672.32

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Solution

The fourth proportional to 8,220.76, 12,332.31 and 2,672.32 is: 4,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.76 : 12,332.31 = 2,672.32 : x
  2. Step 2: Convert to fraction form
    8,220.76/12,332.31 = 2,672.32/x
  3. Step 3: Cross multiply
    8,220.76x = 12,332.31 × 2,672.32
  4. Step 4: Simplify right side
    8,220.76x = 32,955,878.66
  5. Step 5: Solve for x
    x = 32,955,878.66/8,220.76
  6. Step 6: Final answer
    x = 4,008.86

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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.