Home / 12,742.69-19,113.36-3,976.96

Finding the Fourth Proportional to 12,742.69, 19,113.36 and 3,976.96

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Solution

The fourth proportional to 12,742.69, 19,113.36 and 3,976.96 is: 5,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.69 : 19,113.36 = 3,976.96 : x
  2. Step 2: Convert to fraction form
    12,742.69/19,113.36 = 3,976.96/x
  3. Step 3: Cross multiply
    12,742.69x = 19,113.36 × 3,976.96
  4. Step 4: Simplify right side
    12,742.69x = 76,013,068.19
  5. Step 5: Solve for x
    x = 76,013,068.19/12,742.69
  6. Step 6: Final answer
    x = 5,965.23

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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.