Home / 6,660.90-9,188.34-4,006.68

Finding the Fourth Proportional to 6,660.90, 9,188.34 and 4,006.68

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Solution

The fourth proportional to 6,660.90, 9,188.34 and 4,006.68 is: 5,526.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.90 : 9,188.34 = 4,006.68 : x
  2. Step 2: Convert to fraction form
    6,660.90/9,188.34 = 4,006.68/x
  3. Step 3: Cross multiply
    6,660.90x = 9,188.34 × 4,006.68
  4. Step 4: Simplify right side
    6,660.90x = 36,814,738.11
  5. Step 5: Solve for x
    x = 36,814,738.11/6,660.90
  6. Step 6: Final answer
    x = 5,526.99

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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.