Home / 18,522.04-27,783.58-8,131.40

Finding the Fourth Proportional to 18,522.04, 27,783.58 and 8,131.40

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Solution

The fourth proportional to 18,522.04, 27,783.58 and 8,131.40 is: 12,197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.04 : 27,783.58 = 8,131.40 : x
  2. Step 2: Convert to fraction form
    18,522.04/27,783.58 = 8,131.40/x
  3. Step 3: Cross multiply
    18,522.04x = 27,783.58 × 8,131.40
  4. Step 4: Simplify right side
    18,522.04x = 225,919,402.41
  5. Step 5: Solve for x
    x = 225,919,402.41/18,522.04
  6. Step 6: Final answer
    x = 12,197.33

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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.