Home / 14,081.24-21,121.86-4,720.52

Finding the Fourth Proportional to 14,081.24, 21,121.86 and 4,720.52

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Solution

The fourth proportional to 14,081.24, 21,121.86 and 4,720.52 is: 7,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.24 : 21,121.86 = 4,720.52 : x
  2. Step 2: Convert to fraction form
    14,081.24/21,121.86 = 4,720.52/x
  3. Step 3: Cross multiply
    14,081.24x = 21,121.86 × 4,720.52
  4. Step 4: Simplify right side
    14,081.24x = 99,706,162.57
  5. Step 5: Solve for x
    x = 99,706,162.57/14,081.24
  6. Step 6: Final answer
    x = 7,080.78

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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.