Home / 12,555.97-17,298.73-9,713.56

Finding the Fourth Proportional to 12,555.97, 17,298.73 and 9,713.56

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Solution

The fourth proportional to 12,555.97, 17,298.73 and 9,713.56 is: 13,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.97 : 17,298.73 = 9,713.56 : x
  2. Step 2: Convert to fraction form
    12,555.97/17,298.73 = 9,713.56/x
  3. Step 3: Cross multiply
    12,555.97x = 17,298.73 × 9,713.56
  4. Step 4: Simplify right side
    12,555.97x = 168,032,251.78
  5. Step 5: Solve for x
    x = 168,032,251.78/12,555.97
  6. Step 6: Final answer
    x = 13,382.66

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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.