Home / 11,421.36-17,108.91-8,944.38

Finding the Fourth Proportional to 11,421.36, 17,108.91 and 8,944.38

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Solution

The fourth proportional to 11,421.36, 17,108.91 and 8,944.38 is: 13,398.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.36 : 17,108.91 = 8,944.38 : x
  2. Step 2: Convert to fraction form
    11,421.36/17,108.91 = 8,944.38/x
  3. Step 3: Cross multiply
    11,421.36x = 17,108.91 × 8,944.38
  4. Step 4: Simplify right side
    11,421.36x = 153,028,592.43
  5. Step 5: Solve for x
    x = 153,028,592.43/11,421.36
  6. Step 6: Final answer
    x = 13,398.46

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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.