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Finding the Fourth Proportional to 14,502.80, 21,755.80 and 4,640.40

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Solution

The fourth proportional to 14,502.80, 21,755.80 and 4,640.40 is: 6,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.80 : 21,755.80 = 4,640.40 : x
  2. Step 2: Convert to fraction form
    14,502.80/21,755.80 = 4,640.40/x
  3. Step 3: Cross multiply
    14,502.80x = 21,755.80 × 4,640.40
  4. Step 4: Simplify right side
    14,502.80x = 100,955,614.32
  5. Step 5: Solve for x
    x = 100,955,614.32/14,502.80
  6. Step 6: Final answer
    x = 6,961.11

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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.