Home / 14,979.30-22,439.76-9,121.38

Finding the Fourth Proportional to 14,979.30, 22,439.76 and 9,121.38

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Solution

The fourth proportional to 14,979.30, 22,439.76 and 9,121.38 is: 13,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.30 : 22,439.76 = 9,121.38 : x
  2. Step 2: Convert to fraction form
    14,979.30/22,439.76 = 9,121.38/x
  3. Step 3: Cross multiply
    14,979.30x = 22,439.76 × 9,121.38
  4. Step 4: Simplify right side
    14,979.30x = 204,681,578.07
  5. Step 5: Solve for x
    x = 204,681,578.07/14,979.30
  6. Step 6: Final answer
    x = 13,664.30

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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.