Home / 13,176.32-18,193.41-8,706.20

Finding the Fourth Proportional to 13,176.32, 18,193.41 and 8,706.20

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Solution

The fourth proportional to 13,176.32, 18,193.41 and 8,706.20 is: 12,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.32 : 18,193.41 = 8,706.20 : x
  2. Step 2: Convert to fraction form
    13,176.32/18,193.41 = 8,706.20/x
  3. Step 3: Cross multiply
    13,176.32x = 18,193.41 × 8,706.20
  4. Step 4: Simplify right side
    13,176.32x = 158,395,375.17
  5. Step 5: Solve for x
    x = 158,395,375.17/13,176.32
  6. Step 6: Final answer
    x = 12,021.22

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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.