Home / 13,914.96-20,874.60-6,520.08

Finding the Fourth Proportional to 13,914.96, 20,874.60 and 6,520.08

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Solution

The fourth proportional to 13,914.96, 20,874.60 and 6,520.08 is: 9,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.96 : 20,874.60 = 6,520.08 : x
  2. Step 2: Convert to fraction form
    13,914.96/20,874.60 = 6,520.08/x
  3. Step 3: Cross multiply
    13,914.96x = 20,874.60 × 6,520.08
  4. Step 4: Simplify right side
    13,914.96x = 136,104,061.97
  5. Step 5: Solve for x
    x = 136,104,061.97/13,914.96
  6. Step 6: Final answer
    x = 9,781.13

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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.