Home / 12,943.30-17,867.77-9,757.89

Finding the Fourth Proportional to 12,943.30, 17,867.77 and 9,757.89

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Solution

The fourth proportional to 12,943.30, 17,867.77 and 9,757.89 is: 13,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.30 : 17,867.77 = 9,757.89 : x
  2. Step 2: Convert to fraction form
    12,943.30/17,867.77 = 9,757.89/x
  3. Step 3: Cross multiply
    12,943.30x = 17,867.77 × 9,757.89
  4. Step 4: Simplify right side
    12,943.30x = 174,351,734.21
  5. Step 5: Solve for x
    x = 174,351,734.21/12,943.30
  6. Step 6: Final answer
    x = 13,470.42

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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.