Home / 9,178.20-13,767.12-2,938.86

Finding the Fourth Proportional to 9,178.20, 13,767.12 and 2,938.86

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Solution

The fourth proportional to 9,178.20, 13,767.12 and 2,938.86 is: 4,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.20 : 13,767.12 = 2,938.86 : x
  2. Step 2: Convert to fraction form
    9,178.20/13,767.12 = 2,938.86/x
  3. Step 3: Cross multiply
    9,178.20x = 13,767.12 × 2,938.86
  4. Step 4: Simplify right side
    9,178.20x = 40,459,638.28
  5. Step 5: Solve for x
    x = 40,459,638.28/9,178.20
  6. Step 6: Final answer
    x = 4,408.23

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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.