Home / 8,106.30-12,159.45-3,176.10

Finding the Fourth Proportional to 8,106.30, 12,159.45 and 3,176.10

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Solution

The fourth proportional to 8,106.30, 12,159.45 and 3,176.10 is: 4,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.30 : 12,159.45 = 3,176.10 : x
  2. Step 2: Convert to fraction form
    8,106.30/12,159.45 = 3,176.10/x
  3. Step 3: Cross multiply
    8,106.30x = 12,159.45 × 3,176.10
  4. Step 4: Simplify right side
    8,106.30x = 38,619,629.15
  5. Step 5: Solve for x
    x = 38,619,629.15/8,106.30
  6. Step 6: Final answer
    x = 4,764.15

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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.