Home / 8,106.54-12,159.18-2,560.05

Finding the Fourth Proportional to 8,106.54, 12,159.18 and 2,560.05

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Solution

The fourth proportional to 8,106.54, 12,159.18 and 2,560.05 is: 3,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.54 : 12,159.18 = 2,560.05 : x
  2. Step 2: Convert to fraction form
    8,106.54/12,159.18 = 2,560.05/x
  3. Step 3: Cross multiply
    8,106.54x = 12,159.18 × 2,560.05
  4. Step 4: Simplify right side
    8,106.54x = 31,128,108.76
  5. Step 5: Solve for x
    x = 31,128,108.76/8,106.54
  6. Step 6: Final answer
    x = 3,839.88

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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.