Home / 11,279.40-16,919.10-4,705.52

Finding the Fourth Proportional to 11,279.40, 16,919.10 and 4,705.52

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Solution

The fourth proportional to 11,279.40, 16,919.10 and 4,705.52 is: 7,058.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.40 : 16,919.10 = 4,705.52 : x
  2. Step 2: Convert to fraction form
    11,279.40/16,919.10 = 4,705.52/x
  3. Step 3: Cross multiply
    11,279.40x = 16,919.10 × 4,705.52
  4. Step 4: Simplify right side
    11,279.40x = 79,613,163.43
  5. Step 5: Solve for x
    x = 79,613,163.43/11,279.40
  6. Step 6: Final answer
    x = 7,058.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.