Home / 18,999.60-26,221.07-11,041.31

Finding the Fourth Proportional to 18,999.60, 26,221.07 and 11,041.31

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Solution

The fourth proportional to 18,999.60, 26,221.07 and 11,041.31 is: 15,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.60 : 26,221.07 = 11,041.31 : x
  2. Step 2: Convert to fraction form
    18,999.60/26,221.07 = 11,041.31/x
  3. Step 3: Cross multiply
    18,999.60x = 26,221.07 × 11,041.31
  4. Step 4: Simplify right side
    18,999.60x = 289,514,993.45
  5. Step 5: Solve for x
    x = 289,514,993.45/18,999.60
  6. Step 6: Final answer
    x = 15,237.95

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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.