Home / 10,221.42-14,105.16-6,249.18

Finding the Fourth Proportional to 10,221.42, 14,105.16 and 6,249.18

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Solution

The fourth proportional to 10,221.42, 14,105.16 and 6,249.18 is: 8,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.42 : 14,105.16 = 6,249.18 : x
  2. Step 2: Convert to fraction form
    10,221.42/14,105.16 = 6,249.18/x
  3. Step 3: Cross multiply
    10,221.42x = 14,105.16 × 6,249.18
  4. Step 4: Simplify right side
    10,221.42x = 88,145,683.77
  5. Step 5: Solve for x
    x = 88,145,683.77/10,221.42
  6. Step 6: Final answer
    x = 8,623.62

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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.