Home / 14,121.31-21,182.12-4,260.68

Finding the Fourth Proportional to 14,121.31, 21,182.12 and 4,260.68

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Solution

The fourth proportional to 14,121.31, 21,182.12 and 4,260.68 is: 6,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.31 : 21,182.12 = 4,260.68 : x
  2. Step 2: Convert to fraction form
    14,121.31/21,182.12 = 4,260.68/x
  3. Step 3: Cross multiply
    14,121.31x = 21,182.12 × 4,260.68
  4. Step 4: Simplify right side
    14,121.31x = 90,250,235.04
  5. Step 5: Solve for x
    x = 90,250,235.04/14,121.31
  6. Step 6: Final answer
    x = 6,391.07

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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.