Home / 13,414.48-20,125.84-6,403.44

Finding the Fourth Proportional to 13,414.48, 20,125.84 and 6,403.44

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Solution

The fourth proportional to 13,414.48, 20,125.84 and 6,403.44 is: 9,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.48 : 20,125.84 = 6,403.44 : x
  2. Step 2: Convert to fraction form
    13,414.48/20,125.84 = 6,403.44/x
  3. Step 3: Cross multiply
    13,414.48x = 20,125.84 × 6,403.44
  4. Step 4: Simplify right side
    13,414.48x = 128,874,608.89
  5. Step 5: Solve for x
    x = 128,874,608.89/13,414.48
  6. Step 6: Final answer
    x = 9,607.13

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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.