Home / 15,622.38-21,559.41-8,548.79

Finding the Fourth Proportional to 15,622.38, 21,559.41 and 8,548.79

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Solution

The fourth proportional to 15,622.38, 21,559.41 and 8,548.79 is: 11,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.38 : 21,559.41 = 8,548.79 : x
  2. Step 2: Convert to fraction form
    15,622.38/21,559.41 = 8,548.79/x
  3. Step 3: Cross multiply
    15,622.38x = 21,559.41 × 8,548.79
  4. Step 4: Simplify right side
    15,622.38x = 184,306,760.82
  5. Step 5: Solve for x
    x = 184,306,760.82/15,622.38
  6. Step 6: Final answer
    x = 11,797.61

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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.