Home / 18,421.12-27,623.12-5,938.80

Finding the Fourth Proportional to 18,421.12, 27,623.12 and 5,938.80

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Solution

The fourth proportional to 18,421.12, 27,623.12 and 5,938.80 is: 8,905.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.12 : 27,623.12 = 5,938.80 : x
  2. Step 2: Convert to fraction form
    18,421.12/27,623.12 = 5,938.80/x
  3. Step 3: Cross multiply
    18,421.12x = 27,623.12 × 5,938.80
  4. Step 4: Simplify right side
    18,421.12x = 164,048,185.06
  5. Step 5: Solve for x
    x = 164,048,185.06/18,421.12
  6. Step 6: Final answer
    x = 8,905.44

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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.