Home / 13,449.96-18,561.02-7,481.07

Finding the Fourth Proportional to 13,449.96, 18,561.02 and 7,481.07

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Solution

The fourth proportional to 13,449.96, 18,561.02 and 7,481.07 is: 10,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.96 : 18,561.02 = 7,481.07 : x
  2. Step 2: Convert to fraction form
    13,449.96/18,561.02 = 7,481.07/x
  3. Step 3: Cross multiply
    13,449.96x = 18,561.02 × 7,481.07
  4. Step 4: Simplify right side
    13,449.96x = 138,856,252.49
  5. Step 5: Solve for x
    x = 138,856,252.49/13,449.96
  6. Step 6: Final answer
    x = 10,323.92

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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.