Home / 11,343.62-17,018.15-11,155.32

Finding the Fourth Proportional to 11,343.62, 17,018.15 and 11,155.32

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Solution

The fourth proportional to 11,343.62, 17,018.15 and 11,155.32 is: 16,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.62 : 17,018.15 = 11,155.32 : x
  2. Step 2: Convert to fraction form
    11,343.62/17,018.15 = 11,155.32/x
  3. Step 3: Cross multiply
    11,343.62x = 17,018.15 × 11,155.32
  4. Step 4: Simplify right side
    11,343.62x = 189,842,853.28
  5. Step 5: Solve for x
    x = 189,842,853.28/11,343.62
  6. Step 6: Final answer
    x = 16,735.65

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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.