Home / 8,836.68-13,259.70-3,909.72

Finding the Fourth Proportional to 8,836.68, 13,259.70 and 3,909.72

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Solution

The fourth proportional to 8,836.68, 13,259.70 and 3,909.72 is: 5,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.68 : 13,259.70 = 3,909.72 : x
  2. Step 2: Convert to fraction form
    8,836.68/13,259.70 = 3,909.72/x
  3. Step 3: Cross multiply
    8,836.68x = 13,259.70 × 3,909.72
  4. Step 4: Simplify right side
    8,836.68x = 51,841,714.28
  5. Step 5: Solve for x
    x = 51,841,714.28/8,836.68
  6. Step 6: Final answer
    x = 5,866.65

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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.