Home / 12,742.49-19,091.73-6,903.20

Finding the Fourth Proportional to 12,742.49, 19,091.73 and 6,903.20

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Solution

The fourth proportional to 12,742.49, 19,091.73 and 6,903.20 is: 10,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.49 : 19,091.73 = 6,903.20 : x
  2. Step 2: Convert to fraction form
    12,742.49/19,091.73 = 6,903.20/x
  3. Step 3: Cross multiply
    12,742.49x = 19,091.73 × 6,903.20
  4. Step 4: Simplify right side
    12,742.49x = 131,794,030.54
  5. Step 5: Solve for x
    x = 131,794,030.54/12,742.49
  6. Step 6: Final answer
    x = 10,342.88

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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.