Home / 12,648.24-18,960.21-11,565.54

Finding the Fourth Proportional to 12,648.24, 18,960.21 and 11,565.54

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Solution

The fourth proportional to 12,648.24, 18,960.21 and 11,565.54 is: 17,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.24 : 18,960.21 = 11,565.54 : x
  2. Step 2: Convert to fraction form
    12,648.24/18,960.21 = 11,565.54/x
  3. Step 3: Cross multiply
    12,648.24x = 18,960.21 × 11,565.54
  4. Step 4: Simplify right side
    12,648.24x = 219,285,067.16
  5. Step 5: Solve for x
    x = 219,285,067.16/12,648.24
  6. Step 6: Final answer
    x = 17,337.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.