Home / 8,105.07-12,159.56-4,154.70

Finding the Fourth Proportional to 8,105.07, 12,159.56 and 4,154.70

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Solution

The fourth proportional to 8,105.07, 12,159.56 and 4,154.70 is: 6,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.07 : 12,159.56 = 4,154.70 : x
  2. Step 2: Convert to fraction form
    8,105.07/12,159.56 = 4,154.70/x
  3. Step 3: Cross multiply
    8,105.07x = 12,159.56 × 4,154.70
  4. Step 4: Simplify right side
    8,105.07x = 50,519,323.93
  5. Step 5: Solve for x
    x = 50,519,323.93/8,105.07
  6. Step 6: Final answer
    x = 6,233.05

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1.5x scale

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.