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Finding the Fourth Proportional to 14,877, 20,530.26 and 8,253

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Solution

The fourth proportional to 14,877, 20,530.26 and 8,253 is: 11,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877 : 20,530.26 = 8,253 : x
  2. Step 2: Convert to fraction form
    14,877/20,530.26 = 8,253/x
  3. Step 3: Cross multiply
    14,877x = 20,530.26 × 8,253
  4. Step 4: Simplify right side
    14,877x = 169,436,235.78
  5. Step 5: Solve for x
    x = 169,436,235.78/14,877
  6. Step 6: Final answer
    x = 11,389.14

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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.