Home / 11,279.79-16,838.96-9,803.97

Finding the Fourth Proportional to 11,279.79, 16,838.96 and 9,803.97

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Solution

The fourth proportional to 11,279.79, 16,838.96 and 9,803.97 is: 14,635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.79 : 16,838.96 = 9,803.97 : x
  2. Step 2: Convert to fraction form
    11,279.79/16,838.96 = 9,803.97/x
  3. Step 3: Cross multiply
    11,279.79x = 16,838.96 × 9,803.97
  4. Step 4: Simplify right side
    11,279.79x = 165,088,609.65
  5. Step 5: Solve for x
    x = 165,088,609.65/11,279.79
  6. Step 6: Final answer
    x = 14,635.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.