Home / 12,817.56-19,227.68-5,422.76

Finding the Fourth Proportional to 12,817.56, 19,227.68 and 5,422.76

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Solution

The fourth proportional to 12,817.56, 19,227.68 and 5,422.76 is: 8,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.56 : 19,227.68 = 5,422.76 : x
  2. Step 2: Convert to fraction form
    12,817.56/19,227.68 = 5,422.76/x
  3. Step 3: Cross multiply
    12,817.56x = 19,227.68 × 5,422.76
  4. Step 4: Simplify right side
    12,817.56x = 104,267,094.00
  5. Step 5: Solve for x
    x = 104,267,094.00/12,817.56
  6. Step 6: Final answer
    x = 8,134.71

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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.