Home / 19,887.60-27,449.97-11,392.50

Finding the Fourth Proportional to 19,887.60, 27,449.97 and 11,392.50

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Solution

The fourth proportional to 19,887.60, 27,449.97 and 11,392.50 is: 15,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.60 : 27,449.97 = 11,392.50 : x
  2. Step 2: Convert to fraction form
    19,887.60/27,449.97 = 11,392.50/x
  3. Step 3: Cross multiply
    19,887.60x = 27,449.97 × 11,392.50
  4. Step 4: Simplify right side
    19,887.60x = 312,723,783.23
  5. Step 5: Solve for x
    x = 312,723,783.23/19,887.60
  6. Step 6: Final answer
    x = 15,724.56

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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.