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Finding the Fourth Proportional to 11,881.71, 17,818.92 and 4,482.36

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Solution

The fourth proportional to 11,881.71, 17,818.92 and 4,482.36 is: 6,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.71 : 17,818.92 = 4,482.36 : x
  2. Step 2: Convert to fraction form
    11,881.71/17,818.92 = 4,482.36/x
  3. Step 3: Cross multiply
    11,881.71x = 17,818.92 × 4,482.36
  4. Step 4: Simplify right side
    11,881.71x = 79,870,814.25
  5. Step 5: Solve for x
    x = 79,870,814.25/11,881.71
  6. Step 6: Final answer
    x = 6,722.16

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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.