Home / 8,717.35-12,029.03-5,180.08

Finding the Fourth Proportional to 8,717.35, 12,029.03 and 5,180.08

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Solution

The fourth proportional to 8,717.35, 12,029.03 and 5,180.08 is: 7,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.35 : 12,029.03 = 5,180.08 : x
  2. Step 2: Convert to fraction form
    8,717.35/12,029.03 = 5,180.08/x
  3. Step 3: Cross multiply
    8,717.35x = 12,029.03 × 5,180.08
  4. Step 4: Simplify right side
    8,717.35x = 62,311,311.82
  5. Step 5: Solve for x
    x = 62,311,311.82/8,717.35
  6. Step 6: Final answer
    x = 7,147.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.