Home / 12,764.12-17,609.48-9,414.98

Finding the Fourth Proportional to 12,764.12, 17,609.48 and 9,414.98

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Solution

The fourth proportional to 12,764.12, 17,609.48 and 9,414.98 is: 12,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.12 : 17,609.48 = 9,414.98 : x
  2. Step 2: Convert to fraction form
    12,764.12/17,609.48 = 9,414.98/x
  3. Step 3: Cross multiply
    12,764.12x = 17,609.48 × 9,414.98
  4. Step 4: Simplify right side
    12,764.12x = 165,792,902.01
  5. Step 5: Solve for x
    x = 165,792,902.01/12,764.12
  6. Step 6: Final answer
    x = 12,988.98

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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.