Home / 8,814.06-12,167.51-6,690.65

Finding the Fourth Proportional to 8,814.06, 12,167.51 and 6,690.65

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Solution

The fourth proportional to 8,814.06, 12,167.51 and 6,690.65 is: 9,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.06 : 12,167.51 = 6,690.65 : x
  2. Step 2: Convert to fraction form
    8,814.06/12,167.51 = 6,690.65/x
  3. Step 3: Cross multiply
    8,814.06x = 12,167.51 × 6,690.65
  4. Step 4: Simplify right side
    8,814.06x = 81,408,456.49
  5. Step 5: Solve for x
    x = 81,408,456.49/8,814.06
  6. Step 6: Final answer
    x = 9,236.20

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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.