Home / 13,911.20-19,187.56-8,608.52

Finding the Fourth Proportional to 13,911.20, 19,187.56 and 8,608.52

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Solution

The fourth proportional to 13,911.20, 19,187.56 and 8,608.52 is: 11,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.20 : 19,187.56 = 8,608.52 : x
  2. Step 2: Convert to fraction form
    13,911.20/19,187.56 = 8,608.52/x
  3. Step 3: Cross multiply
    13,911.20x = 19,187.56 × 8,608.52
  4. Step 4: Simplify right side
    13,911.20x = 165,176,494.01
  5. Step 5: Solve for x
    x = 165,176,494.01/13,911.20
  6. Step 6: Final answer
    x = 11,873.63

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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.