Home / 13,731.90-18,949.51-7,444.14

Finding the Fourth Proportional to 13,731.90, 18,949.51 and 7,444.14

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Solution

The fourth proportional to 13,731.90, 18,949.51 and 7,444.14 is: 10,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.90 : 18,949.51 = 7,444.14 : x
  2. Step 2: Convert to fraction form
    13,731.90/18,949.51 = 7,444.14/x
  3. Step 3: Cross multiply
    13,731.90x = 18,949.51 × 7,444.14
  4. Step 4: Simplify right side
    13,731.90x = 141,062,805.37
  5. Step 5: Solve for x
    x = 141,062,805.37/13,731.90
  6. Step 6: Final answer
    x = 10,272.64

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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.