Home / 10,816.60-16,224.90-3,421.63

Finding the Fourth Proportional to 10,816.60, 16,224.90 and 3,421.63

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Solution

The fourth proportional to 10,816.60, 16,224.90 and 3,421.63 is: 5,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.60 : 16,224.90 = 3,421.63 : x
  2. Step 2: Convert to fraction form
    10,816.60/16,224.90 = 3,421.63/x
  3. Step 3: Cross multiply
    10,816.60x = 16,224.90 × 3,421.63
  4. Step 4: Simplify right side
    10,816.60x = 55,515,604.59
  5. Step 5: Solve for x
    x = 55,515,604.59/10,816.60
  6. Step 6: Final answer
    x = 5,132.45

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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.