Home / 10,647.12-14,691.66-6,170.84

Finding the Fourth Proportional to 10,647.12, 14,691.66 and 6,170.84

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Solution

The fourth proportional to 10,647.12, 14,691.66 and 6,170.84 is: 8,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.12 : 14,691.66 = 6,170.84 : x
  2. Step 2: Convert to fraction form
    10,647.12/14,691.66 = 6,170.84/x
  3. Step 3: Cross multiply
    10,647.12x = 14,691.66 × 6,170.84
  4. Step 4: Simplify right side
    10,647.12x = 90,659,883.19
  5. Step 5: Solve for x
    x = 90,659,883.19/10,647.12
  6. Step 6: Final answer
    x = 8,514.97

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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.