Home / 10,887.56-16,333.40-7,759.80

Finding the Fourth Proportional to 10,887.56, 16,333.40 and 7,759.80

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Solution

The fourth proportional to 10,887.56, 16,333.40 and 7,759.80 is: 11,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.56 : 16,333.40 = 7,759.80 : x
  2. Step 2: Convert to fraction form
    10,887.56/16,333.40 = 7,759.80/x
  3. Step 3: Cross multiply
    10,887.56x = 16,333.40 × 7,759.80
  4. Step 4: Simplify right side
    10,887.56x = 126,743,917.32
  5. Step 5: Solve for x
    x = 126,743,917.32/10,887.56
  6. Step 6: Final answer
    x = 11,641.17

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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.