Home / 12,654.23-18,981.81-4,755.92

Finding the Fourth Proportional to 12,654.23, 18,981.81 and 4,755.92

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Solution

The fourth proportional to 12,654.23, 18,981.81 and 4,755.92 is: 7,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.23 : 18,981.81 = 4,755.92 : x
  2. Step 2: Convert to fraction form
    12,654.23/18,981.81 = 4,755.92/x
  3. Step 3: Cross multiply
    12,654.23x = 18,981.81 × 4,755.92
  4. Step 4: Simplify right side
    12,654.23x = 90,275,969.82
  5. Step 5: Solve for x
    x = 90,275,969.82/12,654.23
  6. Step 6: Final answer
    x = 7,134.05

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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.