Home / 15,222.24-21,003.84-8,932.32

Finding the Fourth Proportional to 15,222.24, 21,003.84 and 8,932.32

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Solution

The fourth proportional to 15,222.24, 21,003.84 and 8,932.32 is: 12,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.24 : 21,003.84 = 8,932.32 : x
  2. Step 2: Convert to fraction form
    15,222.24/21,003.84 = 8,932.32/x
  3. Step 3: Cross multiply
    15,222.24x = 21,003.84 × 8,932.32
  4. Step 4: Simplify right side
    15,222.24x = 187,613,020.11
  5. Step 5: Solve for x
    x = 187,613,020.11/15,222.24
  6. Step 6: Final answer
    x = 12,324.93

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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.