Home / 13,171.05-19,766.95-5,780.61

Finding the Fourth Proportional to 13,171.05, 19,766.95 and 5,780.61

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Solution

The fourth proportional to 13,171.05, 19,766.95 and 5,780.61 is: 8,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.05 : 19,766.95 = 5,780.61 : x
  2. Step 2: Convert to fraction form
    13,171.05/19,766.95 = 5,780.61/x
  3. Step 3: Cross multiply
    13,171.05x = 19,766.95 × 5,780.61
  4. Step 4: Simplify right side
    13,171.05x = 114,264,901.10
  5. Step 5: Solve for x
    x = 114,264,901.10/13,171.05
  6. Step 6: Final answer
    x = 8,675.46

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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.