Home / 7,415.54-11,112.23-6,868.79

Finding the Fourth Proportional to 7,415.54, 11,112.23 and 6,868.79

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Solution

The fourth proportional to 7,415.54, 11,112.23 and 6,868.79 is: 10,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.54 : 11,112.23 = 6,868.79 : x
  2. Step 2: Convert to fraction form
    7,415.54/11,112.23 = 6,868.79/x
  3. Step 3: Cross multiply
    7,415.54x = 11,112.23 × 6,868.79
  4. Step 4: Simplify right side
    7,415.54x = 76,327,574.30
  5. Step 5: Solve for x
    x = 76,327,574.30/7,415.54
  6. Step 6: Final answer
    x = 10,292.92

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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.