Home / 13,983.96-19,279.98-11,456.76

Finding the Fourth Proportional to 13,983.96, 19,279.98 and 11,456.76

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Solution

The fourth proportional to 13,983.96, 19,279.98 and 11,456.76 is: 15,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.96 : 19,279.98 = 11,456.76 : x
  2. Step 2: Convert to fraction form
    13,983.96/19,279.98 = 11,456.76/x
  3. Step 3: Cross multiply
    13,983.96x = 19,279.98 × 11,456.76
  4. Step 4: Simplify right side
    13,983.96x = 220,886,103.66
  5. Step 5: Solve for x
    x = 220,886,103.66/13,983.96
  6. Step 6: Final answer
    x = 15,795.68

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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.