Home / 10,816.81-16,225.11-3,421.27

Finding the Fourth Proportional to 10,816.81, 16,225.11 and 3,421.27

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Solution

The fourth proportional to 10,816.81, 16,225.11 and 3,421.27 is: 5,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.81 : 16,225.11 = 3,421.27 : x
  2. Step 2: Convert to fraction form
    10,816.81/16,225.11 = 3,421.27/x
  3. Step 3: Cross multiply
    10,816.81x = 16,225.11 × 3,421.27
  4. Step 4: Simplify right side
    10,816.81x = 55,510,482.09
  5. Step 5: Solve for x
    x = 55,510,482.09/10,816.81
  6. Step 6: Final answer
    x = 5,131.87

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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.