Home / 10,918.10-16,376.43-3,127.70

Finding the Fourth Proportional to 10,918.10, 16,376.43 and 3,127.70

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Solution

The fourth proportional to 10,918.10, 16,376.43 and 3,127.70 is: 4,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.10 : 16,376.43 = 3,127.70 : x
  2. Step 2: Convert to fraction form
    10,918.10/16,376.43 = 3,127.70/x
  3. Step 3: Cross multiply
    10,918.10x = 16,376.43 × 3,127.70
  4. Step 4: Simplify right side
    10,918.10x = 51,220,560.11
  5. Step 5: Solve for x
    x = 51,220,560.11/10,918.10
  6. Step 6: Final answer
    x = 4,691.34

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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.