Home / 12,742.67-19,113.32-3,976.58

Finding the Fourth Proportional to 12,742.67, 19,113.32 and 3,976.58

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Solution

The fourth proportional to 12,742.67, 19,113.32 and 3,976.58 is: 5,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.67 : 19,113.32 = 3,976.58 : x
  2. Step 2: Convert to fraction form
    12,742.67/19,113.32 = 3,976.58/x
  3. Step 3: Cross multiply
    12,742.67x = 19,113.32 × 3,976.58
  4. Step 4: Simplify right side
    12,742.67x = 76,005,646.05
  5. Step 5: Solve for x
    x = 76,005,646.05/12,742.67
  6. Step 6: Final answer
    x = 5,964.66

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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.