Home / 10,451.58-15,677.13-2,660.40

Finding the Fourth Proportional to 10,451.58, 15,677.13 and 2,660.40

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Solution

The fourth proportional to 10,451.58, 15,677.13 and 2,660.40 is: 3,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.58 : 15,677.13 = 2,660.40 : x
  2. Step 2: Convert to fraction form
    10,451.58/15,677.13 = 2,660.40/x
  3. Step 3: Cross multiply
    10,451.58x = 15,677.13 × 2,660.40
  4. Step 4: Simplify right side
    10,451.58x = 41,707,436.65
  5. Step 5: Solve for x
    x = 41,707,436.65/10,451.58
  6. Step 6: Final answer
    x = 3,990.54

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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.