Home / 8,717.72-13,077.12-2,874.36

Finding the Fourth Proportional to 8,717.72, 13,077.12 and 2,874.36

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Solution

The fourth proportional to 8,717.72, 13,077.12 and 2,874.36 is: 4,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.72 : 13,077.12 = 2,874.36 : x
  2. Step 2: Convert to fraction form
    8,717.72/13,077.12 = 2,874.36/x
  3. Step 3: Cross multiply
    8,717.72x = 13,077.12 × 2,874.36
  4. Step 4: Simplify right side
    8,717.72x = 37,588,350.64
  5. Step 5: Solve for x
    x = 37,588,350.64/8,717.72
  6. Step 6: Final answer
    x = 4,311.72

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1.5x scale

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.