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Finding the Fourth Proportional to 6,381.04, 8,806.92 and 4,111.74

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Solution

The fourth proportional to 6,381.04, 8,806.92 and 4,111.74 is: 5,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.04 : 8,806.92 = 4,111.74 : x
  2. Step 2: Convert to fraction form
    6,381.04/8,806.92 = 4,111.74/x
  3. Step 3: Cross multiply
    6,381.04x = 8,806.92 × 4,111.74
  4. Step 4: Simplify right side
    6,381.04x = 36,211,700.65
  5. Step 5: Solve for x
    x = 36,211,700.65/6,381.04
  6. Step 6: Final answer
    x = 5,674.89

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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.