Home / 14,120.76-21,177.32-6,118.28

Finding the Fourth Proportional to 14,120.76, 21,177.32 and 6,118.28

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Solution

The fourth proportional to 14,120.76, 21,177.32 and 6,118.28 is: 9,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.76 : 21,177.32 = 6,118.28 : x
  2. Step 2: Convert to fraction form
    14,120.76/21,177.32 = 6,118.28/x
  3. Step 3: Cross multiply
    14,120.76x = 21,177.32 × 6,118.28
  4. Step 4: Simplify right side
    14,120.76x = 129,568,773.41
  5. Step 5: Solve for x
    x = 129,568,773.41/14,120.76
  6. Step 6: Final answer
    x = 9,175.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.