Home / 14,121.86-21,182.94-4,261.23

Finding the Fourth Proportional to 14,121.86, 21,182.94 and 4,261.23

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Solution

The fourth proportional to 14,121.86, 21,182.94 and 4,261.23 is: 6,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.86 : 21,182.94 = 4,261.23 : x
  2. Step 2: Convert to fraction form
    14,121.86/21,182.94 = 4,261.23/x
  3. Step 3: Cross multiply
    14,121.86x = 21,182.94 × 4,261.23
  4. Step 4: Simplify right side
    14,121.86x = 90,265,379.42
  5. Step 5: Solve for x
    x = 90,265,379.42/14,121.86
  6. Step 6: Final answer
    x = 6,391.89

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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.