Home / 17,917.68-26,877.55-5,438.11

Finding the Fourth Proportional to 17,917.68, 26,877.55 and 5,438.11

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Solution

The fourth proportional to 17,917.68, 26,877.55 and 5,438.11 is: 8,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.68 : 26,877.55 = 5,438.11 : x
  2. Step 2: Convert to fraction form
    17,917.68/26,877.55 = 5,438.11/x
  3. Step 3: Cross multiply
    17,917.68x = 26,877.55 × 5,438.11
  4. Step 4: Simplify right side
    17,917.68x = 146,163,113.53
  5. Step 5: Solve for x
    x = 146,163,113.53/17,917.68
  6. Step 6: Final answer
    x = 8,157.48

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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.