Home / 11,817.28-17,729.57-5,242.92

Finding the Fourth Proportional to 11,817.28, 17,729.57 and 5,242.92

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Solution

The fourth proportional to 11,817.28, 17,729.57 and 5,242.92 is: 7,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.28 : 17,729.57 = 5,242.92 : x
  2. Step 2: Convert to fraction form
    11,817.28/17,729.57 = 5,242.92/x
  3. Step 3: Cross multiply
    11,817.28x = 17,729.57 × 5,242.92
  4. Step 4: Simplify right side
    11,817.28x = 92,954,717.14
  5. Step 5: Solve for x
    x = 92,954,717.14/11,817.28
  6. Step 6: Final answer
    x = 7,866.00

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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.