Home / 10,525.44-15,789.12-3,129.84

Finding the Fourth Proportional to 10,525.44, 15,789.12 and 3,129.84

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Solution

The fourth proportional to 10,525.44, 15,789.12 and 3,129.84 is: 4,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,525.44 : 15,789.12 = 3,129.84 : x
  2. Step 2: Convert to fraction form
    10,525.44/15,789.12 = 3,129.84/x
  3. Step 3: Cross multiply
    10,525.44x = 15,789.12 × 3,129.84
  4. Step 4: Simplify right side
    10,525.44x = 49,417,419.34
  5. Step 5: Solve for x
    x = 49,417,419.34/10,525.44
  6. Step 6: Final answer
    x = 4,695.05

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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.