Home / 13,168.08-18,167.22-8,454.96

Finding the Fourth Proportional to 13,168.08, 18,167.22 and 8,454.96

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Solution

The fourth proportional to 13,168.08, 18,167.22 and 8,454.96 is: 11,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.08 : 18,167.22 = 8,454.96 : x
  2. Step 2: Convert to fraction form
    13,168.08/18,167.22 = 8,454.96/x
  3. Step 3: Cross multiply
    13,168.08x = 18,167.22 × 8,454.96
  4. Step 4: Simplify right side
    13,168.08x = 153,603,118.41
  5. Step 5: Solve for x
    x = 153,603,118.41/13,168.08
  6. Step 6: Final answer
    x = 11,664.81

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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.