Home / 13,853.58-19,125.07-8,190.06

Finding the Fourth Proportional to 13,853.58, 19,125.07 and 8,190.06

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Solution

The fourth proportional to 13,853.58, 19,125.07 and 8,190.06 is: 11,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.58 : 19,125.07 = 8,190.06 : x
  2. Step 2: Convert to fraction form
    13,853.58/19,125.07 = 8,190.06/x
  3. Step 3: Cross multiply
    13,853.58x = 19,125.07 × 8,190.06
  4. Step 4: Simplify right side
    13,853.58x = 156,635,470.80
  5. Step 5: Solve for x
    x = 156,635,470.80/13,853.58
  6. Step 6: Final answer
    x = 11,306.50

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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.