Home / 10,918.08-16,377.03-3,126.90

Finding the Fourth Proportional to 10,918.08, 16,377.03 and 3,126.90

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Solution

The fourth proportional to 10,918.08, 16,377.03 and 3,126.90 is: 4,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.08 : 16,377.03 = 3,126.90 : x
  2. Step 2: Convert to fraction form
    10,918.08/16,377.03 = 3,126.90/x
  3. Step 3: Cross multiply
    10,918.08x = 16,377.03 × 3,126.90
  4. Step 4: Simplify right side
    10,918.08x = 51,209,335.11
  5. Step 5: Solve for x
    x = 51,209,335.11/10,918.08
  6. Step 6: Final answer
    x = 4,690.32

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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.