Home / 13,731.84-18,949.96-7,444.20

Finding the Fourth Proportional to 13,731.84, 18,949.96 and 7,444.20

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Solution

The fourth proportional to 13,731.84, 18,949.96 and 7,444.20 is: 10,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.84 : 18,949.96 = 7,444.20 : x
  2. Step 2: Convert to fraction form
    13,731.84/18,949.96 = 7,444.20/x
  3. Step 3: Cross multiply
    13,731.84x = 18,949.96 × 7,444.20
  4. Step 4: Simplify right side
    13,731.84x = 141,067,292.23
  5. Step 5: Solve for x
    x = 141,067,292.23/13,731.84
  6. Step 6: Final answer
    x = 10,273.01

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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.