Home / 13,315.52-19,972.56-4,081.52

Finding the Fourth Proportional to 13,315.52, 19,972.56 and 4,081.52

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Solution

The fourth proportional to 13,315.52, 19,972.56 and 4,081.52 is: 6,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.52 : 19,972.56 = 4,081.52 : x
  2. Step 2: Convert to fraction form
    13,315.52/19,972.56 = 4,081.52/x
  3. Step 3: Cross multiply
    13,315.52x = 19,972.56 × 4,081.52
  4. Step 4: Simplify right side
    13,315.52x = 81,518,403.09
  5. Step 5: Solve for x
    x = 81,518,403.09/13,315.52
  6. Step 6: Final answer
    x = 6,122.06

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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.