Home / 13,229.19-18,257.22-8,745.15

Finding the Fourth Proportional to 13,229.19, 18,257.22 and 8,745.15

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Solution

The fourth proportional to 13,229.19, 18,257.22 and 8,745.15 is: 12,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.19 : 18,257.22 = 8,745.15 : x
  2. Step 2: Convert to fraction form
    13,229.19/18,257.22 = 8,745.15/x
  3. Step 3: Cross multiply
    13,229.19x = 18,257.22 × 8,745.15
  4. Step 4: Simplify right side
    13,229.19x = 159,662,127.48
  5. Step 5: Solve for x
    x = 159,662,127.48/13,229.19
  6. Step 6: Final answer
    x = 12,068.93

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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.