Home / 17,108.76-23,615.34-11,129.88

Finding the Fourth Proportional to 17,108.76, 23,615.34 and 11,129.88

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Solution

The fourth proportional to 17,108.76, 23,615.34 and 11,129.88 is: 15,362.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,108.76 : 23,615.34 = 11,129.88 : x
  2. Step 2: Convert to fraction form
    17,108.76/23,615.34 = 11,129.88/x
  3. Step 3: Cross multiply
    17,108.76x = 23,615.34 × 11,129.88
  4. Step 4: Simplify right side
    17,108.76x = 262,835,900.36
  5. Step 5: Solve for x
    x = 262,835,900.36/17,108.76
  6. Step 6: Final answer
    x = 15,362.65

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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.