Home / 14,520.04-21,780.06-4,131.79

Finding the Fourth Proportional to 14,520.04, 21,780.06 and 4,131.79

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Solution

The fourth proportional to 14,520.04, 21,780.06 and 4,131.79 is: 6,197.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.04 : 21,780.06 = 4,131.79 : x
  2. Step 2: Convert to fraction form
    14,520.04/21,780.06 = 4,131.79/x
  3. Step 3: Cross multiply
    14,520.04x = 21,780.06 × 4,131.79
  4. Step 4: Simplify right side
    14,520.04x = 89,990,634.11
  5. Step 5: Solve for x
    x = 89,990,634.11/14,520.04
  6. Step 6: Final answer
    x = 6,197.69

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Similar ratio
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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.