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Finding the Fourth Proportional to 15,468, 21,348.72 and 8,844

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Solution

The fourth proportional to 15,468, 21,348.72 and 8,844 is: 12,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468 : 21,348.72 = 8,844 : x
  2. Step 2: Convert to fraction form
    15,468/21,348.72 = 8,844/x
  3. Step 3: Cross multiply
    15,468x = 21,348.72 × 8,844
  4. Step 4: Simplify right side
    15,468x = 188,808,079.68
  5. Step 5: Solve for x
    x = 188,808,079.68/15,468
  6. Step 6: Final answer
    x = 12,206.37

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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.