Home / 11,009.10-16,513.50-5,161.56

Finding the Fourth Proportional to 11,009.10, 16,513.50 and 5,161.56

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Solution

The fourth proportional to 11,009.10, 16,513.50 and 5,161.56 is: 7,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.10 : 16,513.50 = 5,161.56 : x
  2. Step 2: Convert to fraction form
    11,009.10/16,513.50 = 5,161.56/x
  3. Step 3: Cross multiply
    11,009.10x = 16,513.50 × 5,161.56
  4. Step 4: Simplify right side
    11,009.10x = 85,235,421.06
  5. Step 5: Solve for x
    x = 85,235,421.06/11,009.10
  6. Step 6: Final answer
    x = 7,742.27

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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.