Home / 8,552.40-12,811.32-6,997.20

Finding the Fourth Proportional to 8,552.40, 12,811.32 and 6,997.20

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Solution

The fourth proportional to 8,552.40, 12,811.32 and 6,997.20 is: 10,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,552.40 : 12,811.32 = 6,997.20 : x
  2. Step 2: Convert to fraction form
    8,552.40/12,811.32 = 6,997.20/x
  3. Step 3: Cross multiply
    8,552.40x = 12,811.32 × 6,997.20
  4. Step 4: Simplify right side
    8,552.40x = 89,643,368.30
  5. Step 5: Solve for x
    x = 89,643,368.30/8,552.40
  6. Step 6: Final answer
    x = 10,481.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.