Home / 13,523.04-20,233.53-7,979.40

Finding the Fourth Proportional to 13,523.04, 20,233.53 and 7,979.40

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Solution

The fourth proportional to 13,523.04, 20,233.53 and 7,979.40 is: 11,938.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.04 : 20,233.53 = 7,979.40 : x
  2. Step 2: Convert to fraction form
    13,523.04/20,233.53 = 7,979.40/x
  3. Step 3: Cross multiply
    13,523.04x = 20,233.53 × 7,979.40
  4. Step 4: Simplify right side
    13,523.04x = 161,451,429.28
  5. Step 5: Solve for x
    x = 161,451,429.28/13,523.04
  6. Step 6: Final answer
    x = 11,938.99

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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.