Home / 8,680.11-13,020.24-2,106.35

Finding the Fourth Proportional to 8,680.11, 13,020.24 and 2,106.35

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Solution

The fourth proportional to 8,680.11, 13,020.24 and 2,106.35 is: 3,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.11 : 13,020.24 = 2,106.35 : x
  2. Step 2: Convert to fraction form
    8,680.11/13,020.24 = 2,106.35/x
  3. Step 3: Cross multiply
    8,680.11x = 13,020.24 × 2,106.35
  4. Step 4: Simplify right side
    8,680.11x = 27,425,247.39
  5. Step 5: Solve for x
    x = 27,425,247.39/8,680.11
  6. Step 6: Final answer
    x = 3,159.55

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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.