Home / 8,943.97-12,340.49-5,359.51

Finding the Fourth Proportional to 8,943.97, 12,340.49 and 5,359.51

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Solution

The fourth proportional to 8,943.97, 12,340.49 and 5,359.51 is: 7,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.97 : 12,340.49 = 5,359.51 : x
  2. Step 2: Convert to fraction form
    8,943.97/12,340.49 = 5,359.51/x
  3. Step 3: Cross multiply
    8,943.97x = 12,340.49 × 5,359.51
  4. Step 4: Simplify right side
    8,943.97x = 66,138,952.76
  5. Step 5: Solve for x
    x = 66,138,952.76/8,943.97
  6. Step 6: Final answer
    x = 7,394.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.