Home / 18,979.98-28,463.90-8,983.37

Finding the Fourth Proportional to 18,979.98, 28,463.90 and 8,983.37

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Solution

The fourth proportional to 18,979.98, 28,463.90 and 8,983.37 is: 13,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.98 : 28,463.90 = 8,983.37 : x
  2. Step 2: Convert to fraction form
    18,979.98/28,463.90 = 8,983.37/x
  3. Step 3: Cross multiply
    18,979.98x = 28,463.90 × 8,983.37
  4. Step 4: Simplify right side
    18,979.98x = 255,701,558.11
  5. Step 5: Solve for x
    x = 255,701,558.11/18,979.98
  6. Step 6: Final answer
    x = 13,472.17

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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.