Home / 13,129.99-19,689.06-3,767.88

Finding the Fourth Proportional to 13,129.99, 19,689.06 and 3,767.88

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Solution

The fourth proportional to 13,129.99, 19,689.06 and 3,767.88 is: 5,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.99 : 19,689.06 = 3,767.88 : x
  2. Step 2: Convert to fraction form
    13,129.99/19,689.06 = 3,767.88/x
  3. Step 3: Cross multiply
    13,129.99x = 19,689.06 × 3,767.88
  4. Step 4: Simplify right side
    13,129.99x = 74,186,015.39
  5. Step 5: Solve for x
    x = 74,186,015.39/13,129.99
  6. Step 6: Final answer
    x = 5,650.12

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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.