Home / 12,666.25-17,480.84-9,516.97

Finding the Fourth Proportional to 12,666.25, 17,480.84 and 9,516.97

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Solution

The fourth proportional to 12,666.25, 17,480.84 and 9,516.97 is: 13,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.25 : 17,480.84 = 9,516.97 : x
  2. Step 2: Convert to fraction form
    12,666.25/17,480.84 = 9,516.97/x
  3. Step 3: Cross multiply
    12,666.25x = 17,480.84 × 9,516.97
  4. Step 4: Simplify right side
    12,666.25x = 166,364,538.57
  5. Step 5: Solve for x
    x = 166,364,538.57/12,666.25
  6. Step 6: Final answer
    x = 13,134.48

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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.