Home / 8,669.60-11,956.96-5,520.32

Finding the Fourth Proportional to 8,669.60, 11,956.96 and 5,520.32

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Solution

The fourth proportional to 8,669.60, 11,956.96 and 5,520.32 is: 7,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.60 : 11,956.96 = 5,520.32 : x
  2. Step 2: Convert to fraction form
    8,669.60/11,956.96 = 5,520.32/x
  3. Step 3: Cross multiply
    8,669.60x = 11,956.96 × 5,520.32
  4. Step 4: Simplify right side
    8,669.60x = 66,006,245.43
  5. Step 5: Solve for x
    x = 66,006,245.43/8,669.60
  6. Step 6: Final answer
    x = 7,613.53

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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.