Home / 6,660.80-9,188.96-4,006.68

Finding the Fourth Proportional to 6,660.80, 9,188.96 and 4,006.68

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Solution

The fourth proportional to 6,660.80, 9,188.96 and 4,006.68 is: 5,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.80 : 9,188.96 = 4,006.68 : x
  2. Step 2: Convert to fraction form
    6,660.80/9,188.96 = 4,006.68/x
  3. Step 3: Cross multiply
    6,660.80x = 9,188.96 × 4,006.68
  4. Step 4: Simplify right side
    6,660.80x = 36,817,222.25
  5. Step 5: Solve for x
    x = 36,817,222.25/6,660.80
  6. Step 6: Final answer
    x = 5,527.45

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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.