Home / 12,751.22-19,134.12-5,355.02

Finding the Fourth Proportional to 12,751.22, 19,134.12 and 5,355.02

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Solution

The fourth proportional to 12,751.22, 19,134.12 and 5,355.02 is: 8,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.22 : 19,134.12 = 5,355.02 : x
  2. Step 2: Convert to fraction form
    12,751.22/19,134.12 = 5,355.02/x
  3. Step 3: Cross multiply
    12,751.22x = 19,134.12 × 5,355.02
  4. Step 4: Simplify right side
    12,751.22x = 102,463,595.28
  5. Step 5: Solve for x
    x = 102,463,595.28/12,751.22
  6. Step 6: Final answer
    x = 8,035.59

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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.