Home / 13,039.68-19,557.03-3,677.40

Finding the Fourth Proportional to 13,039.68, 19,557.03 and 3,677.40

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Solution

The fourth proportional to 13,039.68, 19,557.03 and 3,677.40 is: 5,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.68 : 19,557.03 = 3,677.40 : x
  2. Step 2: Convert to fraction form
    13,039.68/19,557.03 = 3,677.40/x
  3. Step 3: Cross multiply
    13,039.68x = 19,557.03 × 3,677.40
  4. Step 4: Simplify right side
    13,039.68x = 71,919,022.12
  5. Step 5: Solve for x
    x = 71,919,022.12/13,039.68
  6. Step 6: Final answer
    x = 5,515.40

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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.