Home / 10,506.66-15,759.94-3,111.16

Finding the Fourth Proportional to 10,506.66, 15,759.94 and 3,111.16

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Solution

The fourth proportional to 10,506.66, 15,759.94 and 3,111.16 is: 4,666.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.66 : 15,759.94 = 3,111.16 : x
  2. Step 2: Convert to fraction form
    10,506.66/15,759.94 = 3,111.16/x
  3. Step 3: Cross multiply
    10,506.66x = 15,759.94 × 3,111.16
  4. Step 4: Simplify right side
    10,506.66x = 49,031,694.93
  5. Step 5: Solve for x
    x = 49,031,694.93/10,506.66
  6. Step 6: Final answer
    x = 4,666.73

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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.