Home / 11,078.13-15,287.95-6,362.85

Finding the Fourth Proportional to 11,078.13, 15,287.95 and 6,362.85

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Solution

The fourth proportional to 11,078.13, 15,287.95 and 6,362.85 is: 8,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.13 : 15,287.95 = 6,362.85 : x
  2. Step 2: Convert to fraction form
    11,078.13/15,287.95 = 6,362.85/x
  3. Step 3: Cross multiply
    11,078.13x = 15,287.95 × 6,362.85
  4. Step 4: Simplify right side
    11,078.13x = 97,274,932.66
  5. Step 5: Solve for x
    x = 97,274,932.66/11,078.13
  6. Step 6: Final answer
    x = 8,780.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.