Home / 15,982.32-22,055.90-8,907.99

Finding the Fourth Proportional to 15,982.32, 22,055.90 and 8,907.99

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Solution

The fourth proportional to 15,982.32, 22,055.90 and 8,907.99 is: 12,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.32 : 22,055.90 = 8,907.99 : x
  2. Step 2: Convert to fraction form
    15,982.32/22,055.90 = 8,907.99/x
  3. Step 3: Cross multiply
    15,982.32x = 22,055.90 × 8,907.99
  4. Step 4: Simplify right side
    15,982.32x = 196,473,736.64
  5. Step 5: Solve for x
    x = 196,473,736.64/15,982.32
  6. Step 6: Final answer
    x = 12,293.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.