Home / 18,134.82-25,001.46-13,430.34

Finding the Fourth Proportional to 18,134.82, 25,001.46 and 13,430.34

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Solution

The fourth proportional to 18,134.82, 25,001.46 and 13,430.34 is: 18,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.82 : 25,001.46 = 13,430.34 : x
  2. Step 2: Convert to fraction form
    18,134.82/25,001.46 = 13,430.34/x
  3. Step 3: Cross multiply
    18,134.82x = 25,001.46 × 13,430.34
  4. Step 4: Simplify right side
    18,134.82x = 335,778,108.30
  5. Step 5: Solve for x
    x = 335,778,108.30/18,134.82
  6. Step 6: Final answer
    x = 18,515.66

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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.