Home / 8,542.11-12,812.49-2,698.77

Finding the Fourth Proportional to 8,542.11, 12,812.49 and 2,698.77

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Solution

The fourth proportional to 8,542.11, 12,812.49 and 2,698.77 is: 4,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.11 : 12,812.49 = 2,698.77 : x
  2. Step 2: Convert to fraction form
    8,542.11/12,812.49 = 2,698.77/x
  3. Step 3: Cross multiply
    8,542.11x = 12,812.49 × 2,698.77
  4. Step 4: Simplify right side
    8,542.11x = 34,577,963.64
  5. Step 5: Solve for x
    x = 34,577,963.64/8,542.11
  6. Step 6: Final answer
    x = 4,047.94

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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.