Home / 8,541.40-12,807.78-2,616.52

Finding the Fourth Proportional to 8,541.40, 12,807.78 and 2,616.52

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Solution

The fourth proportional to 8,541.40, 12,807.78 and 2,616.52 is: 3,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.40 : 12,807.78 = 2,616.52 : x
  2. Step 2: Convert to fraction form
    8,541.40/12,807.78 = 2,616.52/x
  3. Step 3: Cross multiply
    8,541.40x = 12,807.78 × 2,616.52
  4. Step 4: Simplify right side
    8,541.40x = 33,511,812.53
  5. Step 5: Solve for x
    x = 33,511,812.53/8,541.40
  6. Step 6: Final answer
    x = 3,923.46

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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.