Home / 10,887.05-16,331.25-8,914.64

Finding the Fourth Proportional to 10,887.05, 16,331.25 and 8,914.64

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Solution

The fourth proportional to 10,887.05, 16,331.25 and 8,914.64 is: 13,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.05 : 16,331.25 = 8,914.64 : x
  2. Step 2: Convert to fraction form
    10,887.05/16,331.25 = 8,914.64/x
  3. Step 3: Cross multiply
    10,887.05x = 16,331.25 × 8,914.64
  4. Step 4: Simplify right side
    10,887.05x = 145,587,132.84
  5. Step 5: Solve for x
    x = 145,587,132.84/10,887.05
  6. Step 6: Final answer
    x = 13,372.51

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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.