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Finding the Fourth Proportional to 12,528.72, 18,793.08 and 3,294

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Solution

The fourth proportional to 12,528.72, 18,793.08 and 3,294 is: 4,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.72 : 18,793.08 = 3,294 : x
  2. Step 2: Convert to fraction form
    12,528.72/18,793.08 = 3,294/x
  3. Step 3: Cross multiply
    12,528.72x = 18,793.08 × 3,294
  4. Step 4: Simplify right side
    12,528.72x = 61,904,405.52
  5. Step 5: Solve for x
    x = 61,904,405.52/12,528.72
  6. Step 6: Final answer
    x = 4,941.00

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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.