Home / 10,803.85-16,199.29-4,222.20

Finding the Fourth Proportional to 10,803.85, 16,199.29 and 4,222.20

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Solution

The fourth proportional to 10,803.85, 16,199.29 and 4,222.20 is: 6,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.85 : 16,199.29 = 4,222.20 : x
  2. Step 2: Convert to fraction form
    10,803.85/16,199.29 = 4,222.20/x
  3. Step 3: Cross multiply
    10,803.85x = 16,199.29 × 4,222.20
  4. Step 4: Simplify right side
    10,803.85x = 68,396,642.24
  5. Step 5: Solve for x
    x = 68,396,642.24/10,803.85
  6. Step 6: Final answer
    x = 6,330.77

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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.