Home / 8,040.87-12,043.49-6,178.28

Finding the Fourth Proportional to 8,040.87, 12,043.49 and 6,178.28

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Solution

The fourth proportional to 8,040.87, 12,043.49 and 6,178.28 is: 9,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.87 : 12,043.49 = 6,178.28 : x
  2. Step 2: Convert to fraction form
    8,040.87/12,043.49 = 6,178.28/x
  3. Step 3: Cross multiply
    8,040.87x = 12,043.49 × 6,178.28
  4. Step 4: Simplify right side
    8,040.87x = 74,407,962.29
  5. Step 5: Solve for x
    x = 74,407,962.29/8,040.87
  6. Step 6: Final answer
    x = 9,253.72

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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.