Home / 11,178.95-16,763.49-3,781.49

Finding the Fourth Proportional to 11,178.95, 16,763.49 and 3,781.49

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Solution

The fourth proportional to 11,178.95, 16,763.49 and 3,781.49 is: 5,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.95 : 16,763.49 = 3,781.49 : x
  2. Step 2: Convert to fraction form
    11,178.95/16,763.49 = 3,781.49/x
  3. Step 3: Cross multiply
    11,178.95x = 16,763.49 × 3,781.49
  4. Step 4: Simplify right side
    11,178.95x = 63,390,885.98
  5. Step 5: Solve for x
    x = 63,390,885.98/11,178.95
  6. Step 6: Final answer
    x = 5,670.56

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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.