Home / 19,372.94-29,071.68-8,279.70

Finding the Fourth Proportional to 19,372.94, 29,071.68 and 8,279.70

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Solution

The fourth proportional to 19,372.94, 29,071.68 and 8,279.70 is: 12,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.94 : 29,071.68 = 8,279.70 : x
  2. Step 2: Convert to fraction form
    19,372.94/29,071.68 = 8,279.70/x
  3. Step 3: Cross multiply
    19,372.94x = 29,071.68 × 8,279.70
  4. Step 4: Simplify right side
    19,372.94x = 240,704,788.90
  5. Step 5: Solve for x
    x = 240,704,788.90/19,372.94
  6. Step 6: Final answer
    x = 12,424.79

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1.5x scale

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.