Home / 12,259.19-18,387.03-3,938.14

Finding the Fourth Proportional to 12,259.19, 18,387.03 and 3,938.14

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Solution

The fourth proportional to 12,259.19, 18,387.03 and 3,938.14 is: 5,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.19 : 18,387.03 = 3,938.14 : x
  2. Step 2: Convert to fraction form
    12,259.19/18,387.03 = 3,938.14/x
  3. Step 3: Cross multiply
    12,259.19x = 18,387.03 × 3,938.14
  4. Step 4: Simplify right side
    12,259.19x = 72,410,606.39
  5. Step 5: Solve for x
    x = 72,410,606.39/12,259.19
  6. Step 6: Final answer
    x = 5,906.64

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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.