Home / 12,351.40-17,042.22-7,313.12

Finding the Fourth Proportional to 12,351.40, 17,042.22 and 7,313.12

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Solution

The fourth proportional to 12,351.40, 17,042.22 and 7,313.12 is: 10,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.40 : 17,042.22 = 7,313.12 : x
  2. Step 2: Convert to fraction form
    12,351.40/17,042.22 = 7,313.12/x
  3. Step 3: Cross multiply
    12,351.40x = 17,042.22 × 7,313.12
  4. Step 4: Simplify right side
    12,351.40x = 124,631,799.93
  5. Step 5: Solve for x
    x = 124,631,799.93/12,351.40
  6. Step 6: Final answer
    x = 10,090.50

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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.