Home / 18,322.47-27,481.77-12,437.19

Finding the Fourth Proportional to 18,322.47, 27,481.77 and 12,437.19

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Solution

The fourth proportional to 18,322.47, 27,481.77 and 12,437.19 is: 18,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.47 : 27,481.77 = 12,437.19 : x
  2. Step 2: Convert to fraction form
    18,322.47/27,481.77 = 12,437.19/x
  3. Step 3: Cross multiply
    18,322.47x = 27,481.77 × 12,437.19
  4. Step 4: Simplify right side
    18,322.47x = 341,795,995.03
  5. Step 5: Solve for x
    x = 341,795,995.03/18,322.47
  6. Step 6: Final answer
    x = 18,654.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.