Home / 9,981.80-14,979.90-4,791.24

Finding the Fourth Proportional to 9,981.80, 14,979.90 and 4,791.24

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Solution

The fourth proportional to 9,981.80, 14,979.90 and 4,791.24 is: 7,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.80 : 14,979.90 = 4,791.24 : x
  2. Step 2: Convert to fraction form
    9,981.80/14,979.90 = 4,791.24/x
  3. Step 3: Cross multiply
    9,981.80x = 14,979.90 × 4,791.24
  4. Step 4: Simplify right side
    9,981.80x = 71,772,296.08
  5. Step 5: Solve for x
    x = 71,772,296.08/9,981.80
  6. Step 6: Final answer
    x = 7,190.32

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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.