Home / 8,929.11-13,389.34-2,687.96

Finding the Fourth Proportional to 8,929.11, 13,389.34 and 2,687.96

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Solution

The fourth proportional to 8,929.11, 13,389.34 and 2,687.96 is: 4,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.11 : 13,389.34 = 2,687.96 : x
  2. Step 2: Convert to fraction form
    8,929.11/13,389.34 = 2,687.96/x
  3. Step 3: Cross multiply
    8,929.11x = 13,389.34 × 2,687.96
  4. Step 4: Simplify right side
    8,929.11x = 35,990,000.70
  5. Step 5: Solve for x
    x = 35,990,000.70/8,929.11
  6. Step 6: Final answer
    x = 4,030.64

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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.