Home / 12,853.44-17,743.10-9,315.96

Finding the Fourth Proportional to 12,853.44, 17,743.10 and 9,315.96

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Solution

The fourth proportional to 12,853.44, 17,743.10 and 9,315.96 is: 12,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.44 : 17,743.10 = 9,315.96 : x
  2. Step 2: Convert to fraction form
    12,853.44/17,743.10 = 9,315.96/x
  3. Step 3: Cross multiply
    12,853.44x = 17,743.10 × 9,315.96
  4. Step 4: Simplify right side
    12,853.44x = 165,293,963.30
  5. Step 5: Solve for x
    x = 165,293,963.30/12,853.44
  6. Step 6: Final answer
    x = 12,859.90

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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.