Home / 7,800.13-11,693.62-3,637.95

Finding the Fourth Proportional to 7,800.13, 11,693.62 and 3,637.95

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Solution

The fourth proportional to 7,800.13, 11,693.62 and 3,637.95 is: 5,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.13 : 11,693.62 = 3,637.95 : x
  2. Step 2: Convert to fraction form
    7,800.13/11,693.62 = 3,637.95/x
  3. Step 3: Cross multiply
    7,800.13x = 11,693.62 × 3,637.95
  4. Step 4: Simplify right side
    7,800.13x = 42,540,745.11
  5. Step 5: Solve for x
    x = 42,540,745.11/7,800.13
  6. Step 6: Final answer
    x = 5,453.85

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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.