Home / 13,528.97-20,279.07-7,984.91

Finding the Fourth Proportional to 13,528.97, 20,279.07 and 7,984.91

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Solution

The fourth proportional to 13,528.97, 20,279.07 and 7,984.91 is: 11,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.97 : 20,279.07 = 7,984.91 : x
  2. Step 2: Convert to fraction form
    13,528.97/20,279.07 = 7,984.91/x
  3. Step 3: Cross multiply
    13,528.97x = 20,279.07 × 7,984.91
  4. Step 4: Simplify right side
    13,528.97x = 161,926,548.83
  5. Step 5: Solve for x
    x = 161,926,548.83/13,528.97
  6. Step 6: Final answer
    x = 11,968.87

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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.