Home / 13,683.13-20,517.68-6,281.16

Finding the Fourth Proportional to 13,683.13, 20,517.68 and 6,281.16

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Solution

The fourth proportional to 13,683.13, 20,517.68 and 6,281.16 is: 9,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.13 : 20,517.68 = 6,281.16 : x
  2. Step 2: Convert to fraction form
    13,683.13/20,517.68 = 6,281.16/x
  3. Step 3: Cross multiply
    13,683.13x = 20,517.68 × 6,281.16
  4. Step 4: Simplify right side
    13,683.13x = 128,874,769.67
  5. Step 5: Solve for x
    x = 128,874,769.67/13,683.13
  6. Step 6: Final answer
    x = 9,418.52

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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.