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Finding the Fourth Proportional to 14,479.52, 19,974.08 and 8,816

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Solution

The fourth proportional to 14,479.52, 19,974.08 and 8,816 is: 12,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.52 : 19,974.08 = 8,816 : x
  2. Step 2: Convert to fraction form
    14,479.52/19,974.08 = 8,816/x
  3. Step 3: Cross multiply
    14,479.52x = 19,974.08 × 8,816
  4. Step 4: Simplify right side
    14,479.52x = 176,091,489.28
  5. Step 5: Solve for x
    x = 176,091,489.28/14,479.52
  6. Step 6: Final answer
    x = 12,161.42

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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.