Home / 11,161.13-15,402.78-6,125.54

Finding the Fourth Proportional to 11,161.13, 15,402.78 and 6,125.54

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Solution

The fourth proportional to 11,161.13, 15,402.78 and 6,125.54 is: 8,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.13 : 15,402.78 = 6,125.54 : x
  2. Step 2: Convert to fraction form
    11,161.13/15,402.78 = 6,125.54/x
  3. Step 3: Cross multiply
    11,161.13x = 15,402.78 × 6,125.54
  4. Step 4: Simplify right side
    11,161.13x = 94,350,267.99
  5. Step 5: Solve for x
    x = 94,350,267.99/11,161.13
  6. Step 6: Final answer
    x = 8,453.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.