Home / 12,945.24-17,863.43-7,278.93

Finding the Fourth Proportional to 12,945.24, 17,863.43 and 7,278.93

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Solution

The fourth proportional to 12,945.24, 17,863.43 and 7,278.93 is: 10,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.24 : 17,863.43 = 7,278.93 : x
  2. Step 2: Convert to fraction form
    12,945.24/17,863.43 = 7,278.93/x
  3. Step 3: Cross multiply
    12,945.24x = 17,863.43 × 7,278.93
  4. Step 4: Simplify right side
    12,945.24x = 130,026,620.14
  5. Step 5: Solve for x
    x = 130,026,620.14/12,945.24
  6. Step 6: Final answer
    x = 10,044.36

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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.