Home / 18,139.17-27,209.97-6,449.25

Finding the Fourth Proportional to 18,139.17, 27,209.97 and 6,449.25

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Solution

The fourth proportional to 18,139.17, 27,209.97 and 6,449.25 is: 9,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.17 : 27,209.97 = 6,449.25 : x
  2. Step 2: Convert to fraction form
    18,139.17/27,209.97 = 6,449.25/x
  3. Step 3: Cross multiply
    18,139.17x = 27,209.97 × 6,449.25
  4. Step 4: Simplify right side
    18,139.17x = 175,483,899.02
  5. Step 5: Solve for x
    x = 175,483,899.02/18,139.17
  6. Step 6: Final answer
    x = 9,674.31

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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.