Home / 17,438.56-26,149.26-8,678.38

Finding the Fourth Proportional to 17,438.56, 26,149.26 and 8,678.38

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Solution

The fourth proportional to 17,438.56, 26,149.26 and 8,678.38 is: 13,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,438.56 : 26,149.26 = 8,678.38 : x
  2. Step 2: Convert to fraction form
    17,438.56/26,149.26 = 8,678.38/x
  3. Step 3: Cross multiply
    17,438.56x = 26,149.26 × 8,678.38
  4. Step 4: Simplify right side
    17,438.56x = 226,933,215.00
  5. Step 5: Solve for x
    x = 226,933,215.00/17,438.56
  6. Step 6: Final answer
    x = 13,013.30

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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.