Home / 8,218.72-11,338.70-5,029.45

Finding the Fourth Proportional to 8,218.72, 11,338.70 and 5,029.45

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Solution

The fourth proportional to 8,218.72, 11,338.70 and 5,029.45 is: 6,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.72 : 11,338.70 = 5,029.45 : x
  2. Step 2: Convert to fraction form
    8,218.72/11,338.70 = 5,029.45/x
  3. Step 3: Cross multiply
    8,218.72x = 11,338.70 × 5,029.45
  4. Step 4: Simplify right side
    8,218.72x = 57,027,408.94
  5. Step 5: Solve for x
    x = 57,027,408.94/8,218.72
  6. Step 6: Final answer
    x = 6,938.72

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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.