Home / 6,999.20-9,660.88-4,903.84

Finding the Fourth Proportional to 6,999.20, 9,660.88 and 4,903.84

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Solution

The fourth proportional to 6,999.20, 9,660.88 and 4,903.84 is: 6,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.20 : 9,660.88 = 4,903.84 : x
  2. Step 2: Convert to fraction form
    6,999.20/9,660.88 = 4,903.84/x
  3. Step 3: Cross multiply
    6,999.20x = 9,660.88 × 4,903.84
  4. Step 4: Simplify right side
    6,999.20x = 47,375,409.78
  5. Step 5: Solve for x
    x = 47,375,409.78/6,999.20
  6. Step 6: Final answer
    x = 6,768.69

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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.