Home / 18,991.41-28,467.68-9,614.04

Finding the Fourth Proportional to 18,991.41, 28,467.68 and 9,614.04

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Solution

The fourth proportional to 18,991.41, 28,467.68 and 9,614.04 is: 14,411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,991.41 : 28,467.68 = 9,614.04 : x
  2. Step 2: Convert to fraction form
    18,991.41/28,467.68 = 9,614.04/x
  3. Step 3: Cross multiply
    18,991.41x = 28,467.68 × 9,614.04
  4. Step 4: Simplify right side
    18,991.41x = 273,689,366.16
  5. Step 5: Solve for x
    x = 273,689,366.16/18,991.41
  6. Step 6: Final answer
    x = 14,411.22

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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.