Home / 15,920.62-21,998.64-11,459.14

Finding the Fourth Proportional to 15,920.62, 21,998.64 and 11,459.14

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Solution

The fourth proportional to 15,920.62, 21,998.64 and 11,459.14 is: 15,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.62 : 21,998.64 = 11,459.14 : x
  2. Step 2: Convert to fraction form
    15,920.62/21,998.64 = 11,459.14/x
  3. Step 3: Cross multiply
    15,920.62x = 21,998.64 × 11,459.14
  4. Step 4: Simplify right side
    15,920.62x = 252,085,495.57
  5. Step 5: Solve for x
    x = 252,085,495.57/15,920.62
  6. Step 6: Final answer
    x = 15,833.90

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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.