Home / 11,945.88-17,919-4,154.96

Finding the Fourth Proportional to 11,945.88, 17,919 and 4,154.96

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Solution

The fourth proportional to 11,945.88, 17,919 and 4,154.96 is: 6,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.88 : 17,919 = 4,154.96 : x
  2. Step 2: Convert to fraction form
    11,945.88/17,919 = 4,154.96/x
  3. Step 3: Cross multiply
    11,945.88x = 17,919 × 4,154.96
  4. Step 4: Simplify right side
    11,945.88x = 74,452,728.24
  5. Step 5: Solve for x
    x = 74,452,728.24/11,945.88
  6. Step 6: Final answer
    x = 6,232.50

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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.