Home / 10,425.66-15,640.92-3,405.93

Finding the Fourth Proportional to 10,425.66, 15,640.92 and 3,405.93

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Solution

The fourth proportional to 10,425.66, 15,640.92 and 3,405.93 is: 5,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.66 : 15,640.92 = 3,405.93 : x
  2. Step 2: Convert to fraction form
    10,425.66/15,640.92 = 3,405.93/x
  3. Step 3: Cross multiply
    10,425.66x = 15,640.92 × 3,405.93
  4. Step 4: Simplify right side
    10,425.66x = 53,271,878.66
  5. Step 5: Solve for x
    x = 53,271,878.66/10,425.66
  6. Step 6: Final answer
    x = 5,109.69

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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.