Home / 8,856.09-12,219.62-6,731.05

Finding the Fourth Proportional to 8,856.09, 12,219.62 and 6,731.05

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Solution

The fourth proportional to 8,856.09, 12,219.62 and 6,731.05 is: 9,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.09 : 12,219.62 = 6,731.05 : x
  2. Step 2: Convert to fraction form
    8,856.09/12,219.62 = 6,731.05/x
  3. Step 3: Cross multiply
    8,856.09x = 12,219.62 × 6,731.05
  4. Step 4: Simplify right side
    8,856.09x = 82,250,873.20
  5. Step 5: Solve for x
    x = 82,250,873.20/8,856.09
  6. Step 6: Final answer
    x = 9,287.49

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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.