Home / 13,312.79-19,972.26-3,952.60

Finding the Fourth Proportional to 13,312.79, 19,972.26 and 3,952.60

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Solution

The fourth proportional to 13,312.79, 19,972.26 and 3,952.60 is: 5,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.79 : 19,972.26 = 3,952.60 : x
  2. Step 2: Convert to fraction form
    13,312.79/19,972.26 = 3,952.60/x
  3. Step 3: Cross multiply
    13,312.79x = 19,972.26 × 3,952.60
  4. Step 4: Simplify right side
    13,312.79x = 78,942,235.25
  5. Step 5: Solve for x
    x = 78,942,235.25/13,312.79
  6. Step 6: Final answer
    x = 5,929.81

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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.