Home / 8,780-13,176.92-3,853.04

Finding the Fourth Proportional to 8,780, 13,176.92 and 3,853.04

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Solution

The fourth proportional to 8,780, 13,176.92 and 3,853.04 is: 5,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780 : 13,176.92 = 3,853.04 : x
  2. Step 2: Convert to fraction form
    8,780/13,176.92 = 3,853.04/x
  3. Step 3: Cross multiply
    8,780x = 13,176.92 × 3,853.04
  4. Step 4: Simplify right side
    8,780x = 50,771,199.84
  5. Step 5: Solve for x
    x = 50,771,199.84/8,780
  6. Step 6: Final answer
    x = 5,782.60

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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.