Home / 10,516.66-15,776.64-3,122.26

Finding the Fourth Proportional to 10,516.66, 15,776.64 and 3,122.26

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Solution

The fourth proportional to 10,516.66, 15,776.64 and 3,122.26 is: 4,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.66 : 15,776.64 = 3,122.26 : x
  2. Step 2: Convert to fraction form
    10,516.66/15,776.64 = 3,122.26/x
  3. Step 3: Cross multiply
    10,516.66x = 15,776.64 × 3,122.26
  4. Step 4: Simplify right side
    10,516.66x = 49,258,772.01
  5. Step 5: Solve for x
    x = 49,258,772.01/10,516.66
  6. Step 6: Final answer
    x = 4,683.88

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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.