Home / 12,425.40-17,146.92-6,760.32

Finding the Fourth Proportional to 12,425.40, 17,146.92 and 6,760.32

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Solution

The fourth proportional to 12,425.40, 17,146.92 and 6,760.32 is: 9,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.40 : 17,146.92 = 6,760.32 : x
  2. Step 2: Convert to fraction form
    12,425.40/17,146.92 = 6,760.32/x
  3. Step 3: Cross multiply
    12,425.40x = 17,146.92 × 6,760.32
  4. Step 4: Simplify right side
    12,425.40x = 115,918,666.21
  5. Step 5: Solve for x
    x = 115,918,666.21/12,425.40
  6. Step 6: Final answer
    x = 9,329.17

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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.