Home / 14,052.87-21,080.13-5,287.86

Finding the Fourth Proportional to 14,052.87, 21,080.13 and 5,287.86

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Solution

The fourth proportional to 14,052.87, 21,080.13 and 5,287.86 is: 7,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.87 : 21,080.13 = 5,287.86 : x
  2. Step 2: Convert to fraction form
    14,052.87/21,080.13 = 5,287.86/x
  3. Step 3: Cross multiply
    14,052.87x = 21,080.13 × 5,287.86
  4. Step 4: Simplify right side
    14,052.87x = 111,468,776.22
  5. Step 5: Solve for x
    x = 111,468,776.22/14,052.87
  6. Step 6: Final answer
    x = 7,932.10

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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.