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Finding the Fourth Proportional to 18,646, 27,959.88 and 8,776.96

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Solution

The fourth proportional to 18,646, 27,959.88 and 8,776.96 is: 13,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646 : 27,959.88 = 8,776.96 : x
  2. Step 2: Convert to fraction form
    18,646/27,959.88 = 8,776.96/x
  3. Step 3: Cross multiply
    18,646x = 27,959.88 × 8,776.96
  4. Step 4: Simplify right side
    18,646x = 245,402,748.36
  5. Step 5: Solve for x
    x = 245,402,748.36/18,646
  6. Step 6: Final answer
    x = 13,161.15

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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.