Home / 8,219.19-11,339.30-5,234.49

Finding the Fourth Proportional to 8,219.19, 11,339.30 and 5,234.49

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Solution

The fourth proportional to 8,219.19, 11,339.30 and 5,234.49 is: 7,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.19 : 11,339.30 = 5,234.49 : x
  2. Step 2: Convert to fraction form
    8,219.19/11,339.30 = 5,234.49/x
  3. Step 3: Cross multiply
    8,219.19x = 11,339.30 × 5,234.49
  4. Step 4: Simplify right side
    8,219.19x = 59,355,426.28
  5. Step 5: Solve for x
    x = 59,355,426.28/8,219.19
  6. Step 6: Final answer
    x = 7,221.57

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Half scale
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Double scale
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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.