Home / 15,923.22-21,974.49-9,208.20

Finding the Fourth Proportional to 15,923.22, 21,974.49 and 9,208.20

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Solution

The fourth proportional to 15,923.22, 21,974.49 and 9,208.20 is: 12,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.22 : 21,974.49 = 9,208.20 : x
  2. Step 2: Convert to fraction form
    15,923.22/21,974.49 = 9,208.20/x
  3. Step 3: Cross multiply
    15,923.22x = 21,974.49 × 9,208.20
  4. Step 4: Simplify right side
    15,923.22x = 202,345,498.82
  5. Step 5: Solve for x
    x = 202,345,498.82/15,923.22
  6. Step 6: Final answer
    x = 12,707.57

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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.