Home / 12,761.45-19,143.54-5,366.66

Finding the Fourth Proportional to 12,761.45, 19,143.54 and 5,366.66

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Solution

The fourth proportional to 12,761.45, 19,143.54 and 5,366.66 is: 8,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.45 : 19,143.54 = 5,366.66 : x
  2. Step 2: Convert to fraction form
    12,761.45/19,143.54 = 5,366.66/x
  3. Step 3: Cross multiply
    12,761.45x = 19,143.54 × 5,366.66
  4. Step 4: Simplify right side
    12,761.45x = 102,736,774.66
  5. Step 5: Solve for x
    x = 102,736,774.66/12,761.45
  6. Step 6: Final answer
    x = 8,050.56

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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.