Home / 14,170.91-21,247.23-6,775.20

Finding the Fourth Proportional to 14,170.91, 21,247.23 and 6,775.20

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Solution

The fourth proportional to 14,170.91, 21,247.23 and 6,775.20 is: 10,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.91 : 21,247.23 = 6,775.20 : x
  2. Step 2: Convert to fraction form
    14,170.91/21,247.23 = 6,775.20/x
  3. Step 3: Cross multiply
    14,170.91x = 21,247.23 × 6,775.20
  4. Step 4: Simplify right side
    14,170.91x = 143,954,232.70
  5. Step 5: Solve for x
    x = 143,954,232.70/14,170.91
  6. Step 6: Final answer
    x = 10,158.44

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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.