Home / 13,312.66-19,972.07-3,952.47

Finding the Fourth Proportional to 13,312.66, 19,972.07 and 3,952.47

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Solution

The fourth proportional to 13,312.66, 19,972.07 and 3,952.47 is: 5,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.66 : 19,972.07 = 3,952.47 : x
  2. Step 2: Convert to fraction form
    13,312.66/19,972.07 = 3,952.47/x
  3. Step 3: Cross multiply
    13,312.66x = 19,972.07 × 3,952.47
  4. Step 4: Simplify right side
    13,312.66x = 78,938,987.75
  5. Step 5: Solve for x
    x = 78,938,987.75/13,312.66
  6. Step 6: Final answer
    x = 5,929.62

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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.