Home / 18,255.03-25,191.39-10,188.91

Finding the Fourth Proportional to 18,255.03, 25,191.39 and 10,188.91

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Solution

The fourth proportional to 18,255.03, 25,191.39 and 10,188.91 is: 14,060.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.03 : 25,191.39 = 10,188.91 : x
  2. Step 2: Convert to fraction form
    18,255.03/25,191.39 = 10,188.91/x
  3. Step 3: Cross multiply
    18,255.03x = 25,191.39 × 10,188.91
  4. Step 4: Simplify right side
    18,255.03x = 256,672,805.48
  5. Step 5: Solve for x
    x = 256,672,805.48/18,255.03
  6. Step 6: Final answer
    x = 14,060.39

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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.