Home / 18,372.34-25,365.99-14,115.79

Finding the Fourth Proportional to 18,372.34, 25,365.99 and 14,115.79

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Solution

The fourth proportional to 18,372.34, 25,365.99 and 14,115.79 is: 19,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.34 : 25,365.99 = 14,115.79 : x
  2. Step 2: Convert to fraction form
    18,372.34/25,365.99 = 14,115.79/x
  3. Step 3: Cross multiply
    18,372.34x = 25,365.99 × 14,115.79
  4. Step 4: Simplify right side
    18,372.34x = 358,060,987.98
  5. Step 5: Solve for x
    x = 358,060,987.98/18,372.34
  6. Step 6: Final answer
    x = 19,489.13

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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.