Home / 10,916.32-16,375.04-3,126.28

Finding the Fourth Proportional to 10,916.32, 16,375.04 and 3,126.28

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Solution

The fourth proportional to 10,916.32, 16,375.04 and 3,126.28 is: 4,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.32 : 16,375.04 = 3,126.28 : x
  2. Step 2: Convert to fraction form
    10,916.32/16,375.04 = 3,126.28/x
  3. Step 3: Cross multiply
    10,916.32x = 16,375.04 × 3,126.28
  4. Step 4: Simplify right side
    10,916.32x = 51,192,960.05
  5. Step 5: Solve for x
    x = 51,192,960.05/10,916.32
  6. Step 6: Final answer
    x = 4,689.58

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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.