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Finding the Fourth Proportional to 12,497.86, 18,754.08 and 8,984.08

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Solution

The fourth proportional to 12,497.86, 18,754.08 and 8,984.08 is: 13,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.86 : 18,754.08 = 8,984.08 : x
  2. Step 2: Convert to fraction form
    12,497.86/18,754.08 = 8,984.08/x
  3. Step 3: Cross multiply
    12,497.86x = 18,754.08 × 8,984.08
  4. Step 4: Simplify right side
    12,497.86x = 168,488,155.05
  5. Step 5: Solve for x
    x = 168,488,155.05/12,497.86
  6. Step 6: Final answer
    x = 13,481.36

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1.5x scale

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.