Home / 10,429.46-15,646.61-3,409.79

Finding the Fourth Proportional to 10,429.46, 15,646.61 and 3,409.79

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Solution

The fourth proportional to 10,429.46, 15,646.61 and 3,409.79 is: 5,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.46 : 15,646.61 = 3,409.79 : x
  2. Step 2: Convert to fraction form
    10,429.46/15,646.61 = 3,409.79/x
  3. Step 3: Cross multiply
    10,429.46x = 15,646.61 × 3,409.79
  4. Step 4: Simplify right side
    10,429.46x = 53,351,701.95
  5. Step 5: Solve for x
    x = 53,351,701.95/10,429.46
  6. Step 6: Final answer
    x = 5,115.48

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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.