Home / 14,127.78-21,191.15-5,697.92

Finding the Fourth Proportional to 14,127.78, 21,191.15 and 5,697.92

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Solution

The fourth proportional to 14,127.78, 21,191.15 and 5,697.92 is: 8,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.78 : 21,191.15 = 5,697.92 : x
  2. Step 2: Convert to fraction form
    14,127.78/21,191.15 = 5,697.92/x
  3. Step 3: Cross multiply
    14,127.78x = 21,191.15 × 5,697.92
  4. Step 4: Simplify right side
    14,127.78x = 120,745,544.63
  5. Step 5: Solve for x
    x = 120,745,544.63/14,127.78
  6. Step 6: Final answer
    x = 8,546.68

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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.