Home / 15,622.25-21,536.28-11,138.22

Finding the Fourth Proportional to 15,622.25, 21,536.28 and 11,138.22

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Solution

The fourth proportional to 15,622.25, 21,536.28 and 11,138.22 is: 15,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.25 : 21,536.28 = 11,138.22 : x
  2. Step 2: Convert to fraction form
    15,622.25/21,536.28 = 11,138.22/x
  3. Step 3: Cross multiply
    15,622.25x = 21,536.28 × 11,138.22
  4. Step 4: Simplify right side
    15,622.25x = 239,875,824.62
  5. Step 5: Solve for x
    x = 239,875,824.62/15,622.25
  6. Step 6: Final answer
    x = 15,354.76

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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.