Home / 14,279.16-21,418.52-3,890.88

Finding the Fourth Proportional to 14,279.16, 21,418.52 and 3,890.88

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Solution

The fourth proportional to 14,279.16, 21,418.52 and 3,890.88 is: 5,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.16 : 21,418.52 = 3,890.88 : x
  2. Step 2: Convert to fraction form
    14,279.16/21,418.52 = 3,890.88/x
  3. Step 3: Cross multiply
    14,279.16x = 21,418.52 × 3,890.88
  4. Step 4: Simplify right side
    14,279.16x = 83,336,891.10
  5. Step 5: Solve for x
    x = 83,336,891.10/14,279.16
  6. Step 6: Final answer
    x = 5,836.26

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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.