Home / 13,523.03-20,235.21-7,979.03

Finding the Fourth Proportional to 13,523.03, 20,235.21 and 7,979.03

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Solution

The fourth proportional to 13,523.03, 20,235.21 and 7,979.03 is: 11,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.03 : 20,235.21 = 7,979.03 : x
  2. Step 2: Convert to fraction form
    13,523.03/20,235.21 = 7,979.03/x
  3. Step 3: Cross multiply
    13,523.03x = 20,235.21 × 7,979.03
  4. Step 4: Simplify right side
    13,523.03x = 161,457,307.75
  5. Step 5: Solve for x
    x = 161,457,307.75/13,523.03
  6. Step 6: Final answer
    x = 11,939.43

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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.