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Finding the Fourth Proportional to 13,868.33, 20,802.44 and 6,468.68

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Solution

The fourth proportional to 13,868.33, 20,802.44 and 6,468.68 is: 9,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.33 : 20,802.44 = 6,468.68 : x
  2. Step 2: Convert to fraction form
    13,868.33/20,802.44 = 6,468.68/x
  3. Step 3: Cross multiply
    13,868.33x = 20,802.44 × 6,468.68
  4. Step 4: Simplify right side
    13,868.33x = 134,564,327.58
  5. Step 5: Solve for x
    x = 134,564,327.58/13,868.33
  6. Step 6: Final answer
    x = 9,702.99

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1.5x scale

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.