Home / 13,877.73-20,817.81-6,381.18

Finding the Fourth Proportional to 13,877.73, 20,817.81 and 6,381.18

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Solution

The fourth proportional to 13,877.73, 20,817.81 and 6,381.18 is: 9,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.73 : 20,817.81 = 6,381.18 : x
  2. Step 2: Convert to fraction form
    13,877.73/20,817.81 = 6,381.18/x
  3. Step 3: Cross multiply
    13,877.73x = 20,817.81 × 6,381.18
  4. Step 4: Simplify right side
    13,877.73x = 132,842,192.82
  5. Step 5: Solve for x
    x = 132,842,192.82/13,877.73
  6. Step 6: Final answer
    x = 9,572.33

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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.