Home / 11,813.28-17,719.80-5,237.64

Finding the Fourth Proportional to 11,813.28, 17,719.80 and 5,237.64

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Solution

The fourth proportional to 11,813.28, 17,719.80 and 5,237.64 is: 7,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.28 : 17,719.80 = 5,237.64 : x
  2. Step 2: Convert to fraction form
    11,813.28/17,719.80 = 5,237.64/x
  3. Step 3: Cross multiply
    11,813.28x = 17,719.80 × 5,237.64
  4. Step 4: Simplify right side
    11,813.28x = 92,809,933.27
  5. Step 5: Solve for x
    x = 92,809,933.27/11,813.28
  6. Step 6: Final answer
    x = 7,856.41

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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.