Home / 14,121.39-21,182.24-4,260.76

Finding the Fourth Proportional to 14,121.39, 21,182.24 and 4,260.76

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Solution

The fourth proportional to 14,121.39, 21,182.24 and 4,260.76 is: 6,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.39 : 21,182.24 = 4,260.76 : x
  2. Step 2: Convert to fraction form
    14,121.39/21,182.24 = 4,260.76/x
  3. Step 3: Cross multiply
    14,121.39x = 21,182.24 × 4,260.76
  4. Step 4: Simplify right side
    14,121.39x = 90,252,313.69
  5. Step 5: Solve for x
    x = 90,252,313.69/14,121.39
  6. Step 6: Final answer
    x = 6,391.18

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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.