Home / 14,878.26-20,531.01-8,162.55

Finding the Fourth Proportional to 14,878.26, 20,531.01 and 8,162.55

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Solution

The fourth proportional to 14,878.26, 20,531.01 and 8,162.55 is: 11,263.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.26 : 20,531.01 = 8,162.55 : x
  2. Step 2: Convert to fraction form
    14,878.26/20,531.01 = 8,162.55/x
  3. Step 3: Cross multiply
    14,878.26x = 20,531.01 × 8,162.55
  4. Step 4: Simplify right side
    14,878.26x = 167,585,395.68
  5. Step 5: Solve for x
    x = 167,585,395.68/14,878.26
  6. Step 6: Final answer
    x = 11,263.78

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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.