Home / 14,419.72-19,898.82-8,132.68

Finding the Fourth Proportional to 14,419.72, 19,898.82 and 8,132.68

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Solution

The fourth proportional to 14,419.72, 19,898.82 and 8,132.68 is: 11,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.72 : 19,898.82 = 8,132.68 : x
  2. Step 2: Convert to fraction form
    14,419.72/19,898.82 = 8,132.68/x
  3. Step 3: Cross multiply
    14,419.72x = 19,898.82 × 8,132.68
  4. Step 4: Simplify right side
    14,419.72x = 161,830,735.44
  5. Step 5: Solve for x
    x = 161,830,735.44/14,419.72
  6. Step 6: Final answer
    x = 11,222.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.