Home / 11,816.79-17,729.28-5,247.59

Finding the Fourth Proportional to 11,816.79, 17,729.28 and 5,247.59

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Solution

The fourth proportional to 11,816.79, 17,729.28 and 5,247.59 is: 7,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.79 : 17,729.28 = 5,247.59 : x
  2. Step 2: Convert to fraction form
    11,816.79/17,729.28 = 5,247.59/x
  3. Step 3: Cross multiply
    11,816.79x = 17,729.28 × 5,247.59
  4. Step 4: Simplify right side
    11,816.79x = 93,035,903.79
  5. Step 5: Solve for x
    x = 93,035,903.79/11,816.79
  6. Step 6: Final answer
    x = 7,873.20

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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.