Home / 13,018.44-17,965.56-7,429.80

Finding the Fourth Proportional to 13,018.44, 17,965.56 and 7,429.80

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Solution

The fourth proportional to 13,018.44, 17,965.56 and 7,429.80 is: 10,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.44 : 17,965.56 = 7,429.80 : x
  2. Step 2: Convert to fraction form
    13,018.44/17,965.56 = 7,429.80/x
  3. Step 3: Cross multiply
    13,018.44x = 17,965.56 × 7,429.80
  4. Step 4: Simplify right side
    13,018.44x = 133,480,517.69
  5. Step 5: Solve for x
    x = 133,480,517.69/13,018.44
  6. Step 6: Final answer
    x = 10,253.19

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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.