Home / 8,051.60-12,132.26-6,622.76

Finding the Fourth Proportional to 8,051.60, 12,132.26 and 6,622.76

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Solution

The fourth proportional to 8,051.60, 12,132.26 and 6,622.76 is: 9,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.60 : 12,132.26 = 6,622.76 : x
  2. Step 2: Convert to fraction form
    8,051.60/12,132.26 = 6,622.76/x
  3. Step 3: Cross multiply
    8,051.60x = 12,132.26 × 6,622.76
  4. Step 4: Simplify right side
    8,051.60x = 80,349,046.24
  5. Step 5: Solve for x
    x = 80,349,046.24/8,051.60
  6. Step 6: Final answer
    x = 9,979.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.