Home / 10,811.46-16,212.14-5,615.94

Finding the Fourth Proportional to 10,811.46, 16,212.14 and 5,615.94

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Solution

The fourth proportional to 10,811.46, 16,212.14 and 5,615.94 is: 8,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.46 : 16,212.14 = 5,615.94 : x
  2. Step 2: Convert to fraction form
    10,811.46/16,212.14 = 5,615.94/x
  3. Step 3: Cross multiply
    10,811.46x = 16,212.14 × 5,615.94
  4. Step 4: Simplify right side
    10,811.46x = 91,046,338.49
  5. Step 5: Solve for x
    x = 91,046,338.49/10,811.46
  6. Step 6: Final answer
    x = 8,421.28

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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.