Home / 13,499.44-18,586.86-11,478.88

Finding the Fourth Proportional to 13,499.44, 18,586.86 and 11,478.88

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Solution

The fourth proportional to 13,499.44, 18,586.86 and 11,478.88 is: 15,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.44 : 18,586.86 = 11,478.88 : x
  2. Step 2: Convert to fraction form
    13,499.44/18,586.86 = 11,478.88/x
  3. Step 3: Cross multiply
    13,499.44x = 18,586.86 × 11,478.88
  4. Step 4: Simplify right side
    13,499.44x = 213,356,335.52
  5. Step 5: Solve for x
    x = 213,356,335.52/13,499.44
  6. Step 6: Final answer
    x = 15,804.83

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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.