Home / 14,121.88-21,176.06-5,231.12

Finding the Fourth Proportional to 14,121.88, 21,176.06 and 5,231.12

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Solution

The fourth proportional to 14,121.88, 21,176.06 and 5,231.12 is: 7,844.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.88 : 21,176.06 = 5,231.12 : x
  2. Step 2: Convert to fraction form
    14,121.88/21,176.06 = 5,231.12/x
  3. Step 3: Cross multiply
    14,121.88x = 21,176.06 × 5,231.12
  4. Step 4: Simplify right side
    14,121.88x = 110,774,378.95
  5. Step 5: Solve for x
    x = 110,774,378.95/14,121.88
  6. Step 6: Final answer
    x = 7,844.17

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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.