Home / 15,536.70-21,441.51-8,819.82

Finding the Fourth Proportional to 15,536.70, 21,441.51 and 8,819.82

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Solution

The fourth proportional to 15,536.70, 21,441.51 and 8,819.82 is: 12,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.70 : 21,441.51 = 8,819.82 : x
  2. Step 2: Convert to fraction form
    15,536.70/21,441.51 = 8,819.82/x
  3. Step 3: Cross multiply
    15,536.70x = 21,441.51 × 8,819.82
  4. Step 4: Simplify right side
    15,536.70x = 189,110,258.73
  5. Step 5: Solve for x
    x = 189,110,258.73/15,536.70
  6. Step 6: Final answer
    x = 12,171.84

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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.