Home / 13,325.92-19,985.10-3,965.56

Finding the Fourth Proportional to 13,325.92, 19,985.10 and 3,965.56

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Solution

The fourth proportional to 13,325.92, 19,985.10 and 3,965.56 is: 5,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.92 : 19,985.10 = 3,965.56 : x
  2. Step 2: Convert to fraction form
    13,325.92/19,985.10 = 3,965.56/x
  3. Step 3: Cross multiply
    13,325.92x = 19,985.10 × 3,965.56
  4. Step 4: Simplify right side
    13,325.92x = 79,252,113.16
  5. Step 5: Solve for x
    x = 79,252,113.16/13,325.92
  6. Step 6: Final answer
    x = 5,947.22

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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.