Home / 14,279.32-21,419.07-3,891.16

Finding the Fourth Proportional to 14,279.32, 21,419.07 and 3,891.16

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Solution

The fourth proportional to 14,279.32, 21,419.07 and 3,891.16 is: 5,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.32 : 21,419.07 = 3,891.16 : x
  2. Step 2: Convert to fraction form
    14,279.32/21,419.07 = 3,891.16/x
  3. Step 3: Cross multiply
    14,279.32x = 21,419.07 × 3,891.16
  4. Step 4: Simplify right side
    14,279.32x = 83,345,028.42
  5. Step 5: Solve for x
    x = 83,345,028.42/14,279.32
  6. Step 6: Final answer
    x = 5,836.76

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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.