Home / 11,333.12-15,639.78-6,297.80

Finding the Fourth Proportional to 11,333.12, 15,639.78 and 6,297.80

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Solution

The fourth proportional to 11,333.12, 15,639.78 and 6,297.80 is: 8,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.12 : 15,639.78 = 6,297.80 : x
  2. Step 2: Convert to fraction form
    11,333.12/15,639.78 = 6,297.80/x
  3. Step 3: Cross multiply
    11,333.12x = 15,639.78 × 6,297.80
  4. Step 4: Simplify right side
    11,333.12x = 98,496,239.88
  5. Step 5: Solve for x
    x = 98,496,239.88/11,333.12
  6. Step 6: Final answer
    x = 8,691.01

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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.