Home / 15,990.69-22,067.27-9,280.32

Finding the Fourth Proportional to 15,990.69, 22,067.27 and 9,280.32

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Solution

The fourth proportional to 15,990.69, 22,067.27 and 9,280.32 is: 12,806.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.69 : 22,067.27 = 9,280.32 : x
  2. Step 2: Convert to fraction form
    15,990.69/22,067.27 = 9,280.32/x
  3. Step 3: Cross multiply
    15,990.69x = 22,067.27 × 9,280.32
  4. Step 4: Simplify right side
    15,990.69x = 204,791,239.99
  5. Step 5: Solve for x
    x = 204,791,239.99/15,990.69
  6. Step 6: Final answer
    x = 12,806.91

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1.5x scale

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.