Home / 6,919.76-10,381.65-4,111.17

Finding the Fourth Proportional to 6,919.76, 10,381.65 and 4,111.17

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Solution

The fourth proportional to 6,919.76, 10,381.65 and 4,111.17 is: 6,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.76 : 10,381.65 = 4,111.17 : x
  2. Step 2: Convert to fraction form
    6,919.76/10,381.65 = 4,111.17/x
  3. Step 3: Cross multiply
    6,919.76x = 10,381.65 × 4,111.17
  4. Step 4: Simplify right side
    6,919.76x = 42,680,728.03
  5. Step 5: Solve for x
    x = 42,680,728.03/6,919.76
  6. Step 6: Final answer
    x = 6,167.95

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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.