Home / 6,623.96-9,141.12-3,639.86

Finding the Fourth Proportional to 6,623.96, 9,141.12 and 3,639.86

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Solution

The fourth proportional to 6,623.96, 9,141.12 and 3,639.86 is: 5,023.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.96 : 9,141.12 = 3,639.86 : x
  2. Step 2: Convert to fraction form
    6,623.96/9,141.12 = 3,639.86/x
  3. Step 3: Cross multiply
    6,623.96x = 9,141.12 × 3,639.86
  4. Step 4: Simplify right side
    6,623.96x = 33,272,351.34
  5. Step 5: Solve for x
    x = 33,272,351.34/6,623.96
  6. Step 6: Final answer
    x = 5,023.03

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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.