Home / 8,228.42-11,279.04-8,117.66

Finding the Fourth Proportional to 8,228.42, 11,279.04 and 8,117.66

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Solution

The fourth proportional to 8,228.42, 11,279.04 and 8,117.66 is: 11,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.42 : 11,279.04 = 8,117.66 : x
  2. Step 2: Convert to fraction form
    8,228.42/11,279.04 = 8,117.66/x
  3. Step 3: Cross multiply
    8,228.42x = 11,279.04 × 8,117.66
  4. Step 4: Simplify right side
    8,228.42x = 91,559,355.45
  5. Step 5: Solve for x
    x = 91,559,355.45/8,228.42
  6. Step 6: Final answer
    x = 11,127.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.