Home / 8,680.92-11,985.60-5,541.36

Finding the Fourth Proportional to 8,680.92, 11,985.60 and 5,541.36

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Solution

The fourth proportional to 8,680.92, 11,985.60 and 5,541.36 is: 7,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.92 : 11,985.60 = 5,541.36 : x
  2. Step 2: Convert to fraction form
    8,680.92/11,985.60 = 5,541.36/x
  3. Step 3: Cross multiply
    8,680.92x = 11,985.60 × 5,541.36
  4. Step 4: Simplify right side
    8,680.92x = 66,416,524.42
  5. Step 5: Solve for x
    x = 66,416,524.42/8,680.92
  6. Step 6: Final answer
    x = 7,650.86

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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.