Home / 11,144.36-15,382.50-6,431.96

Finding the Fourth Proportional to 11,144.36, 15,382.50 and 6,431.96

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Solution

The fourth proportional to 11,144.36, 15,382.50 and 6,431.96 is: 8,878.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.36 : 15,382.50 = 6,431.96 : x
  2. Step 2: Convert to fraction form
    11,144.36/15,382.50 = 6,431.96/x
  3. Step 3: Cross multiply
    11,144.36x = 15,382.50 × 6,431.96
  4. Step 4: Simplify right side
    11,144.36x = 98,939,624.70
  5. Step 5: Solve for x
    x = 98,939,624.70/11,144.36
  6. Step 6: Final answer
    x = 8,878.00

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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.