Home / 13,717.70-20,569.19-4,355.18

Finding the Fourth Proportional to 13,717.70, 20,569.19 and 4,355.18

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Solution

The fourth proportional to 13,717.70, 20,569.19 and 4,355.18 is: 6,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.70 : 20,569.19 = 4,355.18 : x
  2. Step 2: Convert to fraction form
    13,717.70/20,569.19 = 4,355.18/x
  3. Step 3: Cross multiply
    13,717.70x = 20,569.19 × 4,355.18
  4. Step 4: Simplify right side
    13,717.70x = 89,582,400.28
  5. Step 5: Solve for x
    x = 89,582,400.28/13,717.70
  6. Step 6: Final answer
    x = 6,530.43

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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.