Home / 11,707.52-16,129.44-11,154.56

Finding the Fourth Proportional to 11,707.52, 16,129.44 and 11,154.56

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Solution

The fourth proportional to 11,707.52, 16,129.44 and 11,154.56 is: 15,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.52 : 16,129.44 = 11,154.56 : x
  2. Step 2: Convert to fraction form
    11,707.52/16,129.44 = 11,154.56/x
  3. Step 3: Cross multiply
    11,707.52x = 16,129.44 × 11,154.56
  4. Step 4: Simplify right side
    11,707.52x = 179,916,806.25
  5. Step 5: Solve for x
    x = 179,916,806.25/11,707.52
  6. Step 6: Final answer
    x = 15,367.63

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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.