Home / 12,456.70-17,207.07-9,956.33

Finding the Fourth Proportional to 12,456.70, 17,207.07 and 9,956.33

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Solution

The fourth proportional to 12,456.70, 17,207.07 and 9,956.33 is: 13,753.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.70 : 17,207.07 = 9,956.33 : x
  2. Step 2: Convert to fraction form
    12,456.70/17,207.07 = 9,956.33/x
  3. Step 3: Cross multiply
    12,456.70x = 17,207.07 × 9,956.33
  4. Step 4: Simplify right side
    12,456.70x = 171,319,208.41
  5. Step 5: Solve for x
    x = 171,319,208.41/12,456.70
  6. Step 6: Final answer
    x = 13,753.18

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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.