Home / 6,989.08-9,645.61-5,217.61

Finding the Fourth Proportional to 6,989.08, 9,645.61 and 5,217.61

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Solution

The fourth proportional to 6,989.08, 9,645.61 and 5,217.61 is: 7,200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.08 : 9,645.61 = 5,217.61 : x
  2. Step 2: Convert to fraction form
    6,989.08/9,645.61 = 5,217.61/x
  3. Step 3: Cross multiply
    6,989.08x = 9,645.61 × 5,217.61
  4. Step 4: Simplify right side
    6,989.08x = 50,327,005.10
  5. Step 5: Solve for x
    x = 50,327,005.10/6,989.08
  6. Step 6: Final answer
    x = 7,200.81

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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.