Home / 13,731.54-18,949.65-7,443.93

Finding the Fourth Proportional to 13,731.54, 18,949.65 and 7,443.93

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Solution

The fourth proportional to 13,731.54, 18,949.65 and 7,443.93 is: 10,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.54 : 18,949.65 = 7,443.93 : x
  2. Step 2: Convert to fraction form
    13,731.54/18,949.65 = 7,443.93/x
  3. Step 3: Cross multiply
    13,731.54x = 18,949.65 × 7,443.93
  4. Step 4: Simplify right side
    13,731.54x = 141,059,868.12
  5. Step 5: Solve for x
    x = 141,059,868.12/13,731.54
  6. Step 6: Final answer
    x = 10,272.69

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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.