Home / 10,508.05-15,762.01-3,112.55

Finding the Fourth Proportional to 10,508.05, 15,762.01 and 3,112.55

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Solution

The fourth proportional to 10,508.05, 15,762.01 and 3,112.55 is: 4,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.05 : 15,762.01 = 3,112.55 : x
  2. Step 2: Convert to fraction form
    10,508.05/15,762.01 = 3,112.55/x
  3. Step 3: Cross multiply
    10,508.05x = 15,762.01 × 3,112.55
  4. Step 4: Simplify right side
    10,508.05x = 49,060,044.23
  5. Step 5: Solve for x
    x = 49,060,044.23/10,508.05
  6. Step 6: Final answer
    x = 4,668.81

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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.