Home / 8,681.11-13,021.74-2,107.35

Finding the Fourth Proportional to 8,681.11, 13,021.74 and 2,107.35

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Solution

The fourth proportional to 8,681.11, 13,021.74 and 2,107.35 is: 3,161.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.11 : 13,021.74 = 2,107.35 : x
  2. Step 2: Convert to fraction form
    8,681.11/13,021.74 = 2,107.35/x
  3. Step 3: Cross multiply
    8,681.11x = 13,021.74 × 2,107.35
  4. Step 4: Simplify right side
    8,681.11x = 27,441,363.79
  5. Step 5: Solve for x
    x = 27,441,363.79/8,681.11
  6. Step 6: Final answer
    x = 3,161.04

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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.