Home / 13,279.11-19,921.23-4,513.83

Finding the Fourth Proportional to 13,279.11, 19,921.23 and 4,513.83

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Solution

The fourth proportional to 13,279.11, 19,921.23 and 4,513.83 is: 6,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.11 : 19,921.23 = 4,513.83 : x
  2. Step 2: Convert to fraction form
    13,279.11/19,921.23 = 4,513.83/x
  3. Step 3: Cross multiply
    13,279.11x = 19,921.23 × 4,513.83
  4. Step 4: Simplify right side
    13,279.11x = 89,921,045.61
  5. Step 5: Solve for x
    x = 89,921,045.61/13,279.11
  6. Step 6: Final answer
    x = 6,771.62

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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.