Home / 12,770.22-19,155.54-4,005.21

Finding the Fourth Proportional to 12,770.22, 19,155.54 and 4,005.21

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Solution

The fourth proportional to 12,770.22, 19,155.54 and 4,005.21 is: 6,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.22 : 19,155.54 = 4,005.21 : x
  2. Step 2: Convert to fraction form
    12,770.22/19,155.54 = 4,005.21/x
  3. Step 3: Cross multiply
    12,770.22x = 19,155.54 × 4,005.21
  4. Step 4: Simplify right side
    12,770.22x = 76,721,960.36
  5. Step 5: Solve for x
    x = 76,721,960.36/12,770.22
  6. Step 6: Final answer
    x = 6,007.88

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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.