Home / 9,979.80-14,969.70-2,584.20

Finding the Fourth Proportional to 9,979.80, 14,969.70 and 2,584.20

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Solution

The fourth proportional to 9,979.80, 14,969.70 and 2,584.20 is: 3,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.80 : 14,969.70 = 2,584.20 : x
  2. Step 2: Convert to fraction form
    9,979.80/14,969.70 = 2,584.20/x
  3. Step 3: Cross multiply
    9,979.80x = 14,969.70 × 2,584.20
  4. Step 4: Simplify right side
    9,979.80x = 38,684,698.74
  5. Step 5: Solve for x
    x = 38,684,698.74/9,979.80
  6. Step 6: Final answer
    x = 3,876.30

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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.