Home / 13,223.41-18,249.14-8,739.29

Finding the Fourth Proportional to 13,223.41, 18,249.14 and 8,739.29

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Solution

The fourth proportional to 13,223.41, 18,249.14 and 8,739.29 is: 12,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.41 : 18,249.14 = 8,739.29 : x
  2. Step 2: Convert to fraction form
    13,223.41/18,249.14 = 8,739.29/x
  3. Step 3: Cross multiply
    13,223.41x = 18,249.14 × 8,739.29
  4. Step 4: Simplify right side
    13,223.41x = 159,484,594.18
  5. Step 5: Solve for x
    x = 159,484,594.18/13,223.41
  6. Step 6: Final answer
    x = 12,060.78

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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.