Home / 8,112.42-12,141.90-6,153.84

Finding the Fourth Proportional to 8,112.42, 12,141.90 and 6,153.84

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Solution

The fourth proportional to 8,112.42, 12,141.90 and 6,153.84 is: 9,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.42 : 12,141.90 = 6,153.84 : x
  2. Step 2: Convert to fraction form
    8,112.42/12,141.90 = 6,153.84/x
  3. Step 3: Cross multiply
    8,112.42x = 12,141.90 × 6,153.84
  4. Step 4: Simplify right side
    8,112.42x = 74,719,309.90
  5. Step 5: Solve for x
    x = 74,719,309.90/8,112.42
  6. Step 6: Final answer
    x = 9,210.48

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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.