Home / 10,820.37-16,187.86-8,195.45

Finding the Fourth Proportional to 10,820.37, 16,187.86 and 8,195.45

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Solution

The fourth proportional to 10,820.37, 16,187.86 and 8,195.45 is: 12,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.37 : 16,187.86 = 8,195.45 : x
  2. Step 2: Convert to fraction form
    10,820.37/16,187.86 = 8,195.45/x
  3. Step 3: Cross multiply
    10,820.37x = 16,187.86 × 8,195.45
  4. Step 4: Simplify right side
    10,820.37x = 132,666,680.44
  5. Step 5: Solve for x
    x = 132,666,680.44/10,820.37
  6. Step 6: Final answer
    x = 12,260.82

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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.