Home / 12,471.20-17,203.04-7,993.36

Finding the Fourth Proportional to 12,471.20, 17,203.04 and 7,993.36

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Solution

The fourth proportional to 12,471.20, 17,203.04 and 7,993.36 is: 11,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.20 : 17,203.04 = 7,993.36 : x
  2. Step 2: Convert to fraction form
    12,471.20/17,203.04 = 7,993.36/x
  3. Step 3: Cross multiply
    12,471.20x = 17,203.04 × 7,993.36
  4. Step 4: Simplify right side
    12,471.20x = 137,510,091.81
  5. Step 5: Solve for x
    x = 137,510,091.81/12,471.20
  6. Step 6: Final answer
    x = 11,026.21

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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.