Home / 8,769.16-13,120.80-5,246.20

Finding the Fourth Proportional to 8,769.16, 13,120.80 and 5,246.20

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Solution

The fourth proportional to 8,769.16, 13,120.80 and 5,246.20 is: 7,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.16 : 13,120.80 = 5,246.20 : x
  2. Step 2: Convert to fraction form
    8,769.16/13,120.80 = 5,246.20/x
  3. Step 3: Cross multiply
    8,769.16x = 13,120.80 × 5,246.20
  4. Step 4: Simplify right side
    8,769.16x = 68,834,340.96
  5. Step 5: Solve for x
    x = 68,834,340.96/8,769.16
  6. Step 6: Final answer
    x = 7,849.59

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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.