Home / 10,516.21-15,769.70-3,937.78

Finding the Fourth Proportional to 10,516.21, 15,769.70 and 3,937.78

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Solution

The fourth proportional to 10,516.21, 15,769.70 and 3,937.78 is: 5,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.21 : 15,769.70 = 3,937.78 : x
  2. Step 2: Convert to fraction form
    10,516.21/15,769.70 = 3,937.78/x
  3. Step 3: Cross multiply
    10,516.21x = 15,769.70 × 3,937.78
  4. Step 4: Simplify right side
    10,516.21x = 62,097,550.15
  5. Step 5: Solve for x
    x = 62,097,550.15/10,516.21
  6. Step 6: Final answer
    x = 5,904.94

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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.