Home / 10,440.93-15,664.31-3,425.87

Finding the Fourth Proportional to 10,440.93, 15,664.31 and 3,425.87

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Solution

The fourth proportional to 10,440.93, 15,664.31 and 3,425.87 is: 5,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.93 : 15,664.31 = 3,425.87 : x
  2. Step 2: Convert to fraction form
    10,440.93/15,664.31 = 3,425.87/x
  3. Step 3: Cross multiply
    10,440.93x = 15,664.31 × 3,425.87
  4. Step 4: Simplify right side
    10,440.93x = 53,663,941.79
  5. Step 5: Solve for x
    x = 53,663,941.79/10,440.93
  6. Step 6: Final answer
    x = 5,139.77

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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.