Home / 6,868.08-10,288.80-5,400

Finding the Fourth Proportional to 6,868.08, 10,288.80 and 5,400

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Solution

The fourth proportional to 6,868.08, 10,288.80 and 5,400 is: 8,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.08 : 10,288.80 = 5,400 : x
  2. Step 2: Convert to fraction form
    6,868.08/10,288.80 = 5,400/x
  3. Step 3: Cross multiply
    6,868.08x = 10,288.80 × 5,400
  4. Step 4: Simplify right side
    6,868.08x = 55,559,520.00
  5. Step 5: Solve for x
    x = 55,559,520.00/6,868.08
  6. Step 6: Final answer
    x = 8,089.53

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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.