Home / 14,122.39-21,183.74-4,261.76

Finding the Fourth Proportional to 14,122.39, 21,183.74 and 4,261.76

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Solution

The fourth proportional to 14,122.39, 21,183.74 and 4,261.76 is: 6,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.39 : 21,183.74 = 4,261.76 : x
  2. Step 2: Convert to fraction form
    14,122.39/21,183.74 = 4,261.76/x
  3. Step 3: Cross multiply
    14,122.39x = 21,183.74 × 4,261.76
  4. Step 4: Simplify right side
    14,122.39x = 90,279,888.55
  5. Step 5: Solve for x
    x = 90,279,888.55/14,122.39
  6. Step 6: Final answer
    x = 6,392.68

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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.