Home / 8,909.12-13,363.68-2,669.79

Finding the Fourth Proportional to 8,909.12, 13,363.68 and 2,669.79

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Solution

The fourth proportional to 8,909.12, 13,363.68 and 2,669.79 is: 4,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.12 : 13,363.68 = 2,669.79 : x
  2. Step 2: Convert to fraction form
    8,909.12/13,363.68 = 2,669.79/x
  3. Step 3: Cross multiply
    8,909.12x = 13,363.68 × 2,669.79
  4. Step 4: Simplify right side
    8,909.12x = 35,678,219.23
  5. Step 5: Solve for x
    x = 35,678,219.23/8,909.12
  6. Step 6: Final answer
    x = 4,004.69

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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.