Home / 11,781.98-16,258.77-6,476.78

Finding the Fourth Proportional to 11,781.98, 16,258.77 and 6,476.78

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Solution

The fourth proportional to 11,781.98, 16,258.77 and 6,476.78 is: 8,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.98 : 16,258.77 = 6,476.78 : x
  2. Step 2: Convert to fraction form
    11,781.98/16,258.77 = 6,476.78/x
  3. Step 3: Cross multiply
    11,781.98x = 16,258.77 × 6,476.78
  4. Step 4: Simplify right side
    11,781.98x = 105,304,476.36
  5. Step 5: Solve for x
    x = 105,304,476.36/11,781.98
  6. Step 6: Final answer
    x = 8,937.76

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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.