Home / 10,781.75-16,167.16-4,933.35

Finding the Fourth Proportional to 10,781.75, 16,167.16 and 4,933.35

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Solution

The fourth proportional to 10,781.75, 16,167.16 and 4,933.35 is: 7,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.75 : 16,167.16 = 4,933.35 : x
  2. Step 2: Convert to fraction form
    10,781.75/16,167.16 = 4,933.35/x
  3. Step 3: Cross multiply
    10,781.75x = 16,167.16 × 4,933.35
  4. Step 4: Simplify right side
    10,781.75x = 79,758,258.79
  5. Step 5: Solve for x
    x = 79,758,258.79/10,781.75
  6. Step 6: Final answer
    x = 7,397.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.