Home / 10,525.42-15,788.15-3,129.95

Finding the Fourth Proportional to 10,525.42, 15,788.15 and 3,129.95

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Solution

The fourth proportional to 10,525.42, 15,788.15 and 3,129.95 is: 4,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,525.42 : 15,788.15 = 3,129.95 : x
  2. Step 2: Convert to fraction form
    10,525.42/15,788.15 = 3,129.95/x
  3. Step 3: Cross multiply
    10,525.42x = 15,788.15 × 3,129.95
  4. Step 4: Simplify right side
    10,525.42x = 49,416,155.65
  5. Step 5: Solve for x
    x = 49,416,155.65/10,525.42
  6. Step 6: Final answer
    x = 4,694.93

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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.