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Finding the Fourth Proportional to 8,883.91, 13,325.91 and 3,689.79

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Solution

The fourth proportional to 8,883.91, 13,325.91 and 3,689.79 is: 5,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.91 : 13,325.91 = 3,689.79 : x
  2. Step 2: Convert to fraction form
    8,883.91/13,325.91 = 3,689.79/x
  3. Step 3: Cross multiply
    8,883.91x = 13,325.91 × 3,689.79
  4. Step 4: Simplify right side
    8,883.91x = 49,169,809.46
  5. Step 5: Solve for x
    x = 49,169,809.46/8,883.91
  6. Step 6: Final answer
    x = 5,534.70

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1.5x scale

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.