Home / 9,781.32-13,496.70-6,425.49

Finding the Fourth Proportional to 9,781.32, 13,496.70 and 6,425.49

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Solution

The fourth proportional to 9,781.32, 13,496.70 and 6,425.49 is: 8,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.32 : 13,496.70 = 6,425.49 : x
  2. Step 2: Convert to fraction form
    9,781.32/13,496.70 = 6,425.49/x
  3. Step 3: Cross multiply
    9,781.32x = 13,496.70 × 6,425.49
  4. Step 4: Simplify right side
    9,781.32x = 86,722,910.88
  5. Step 5: Solve for x
    x = 86,722,910.88/9,781.32
  6. Step 6: Final answer
    x = 8,866.18

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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.