Home / 13,936.89-19,232.88-7,649.13

Finding the Fourth Proportional to 13,936.89, 19,232.88 and 7,649.13

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Solution

The fourth proportional to 13,936.89, 19,232.88 and 7,649.13 is: 10,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.89 : 19,232.88 = 7,649.13 : x
  2. Step 2: Convert to fraction form
    13,936.89/19,232.88 = 7,649.13/x
  3. Step 3: Cross multiply
    13,936.89x = 19,232.88 × 7,649.13
  4. Step 4: Simplify right side
    13,936.89x = 147,114,799.39
  5. Step 5: Solve for x
    x = 147,114,799.39/13,936.89
  6. Step 6: Final answer
    x = 10,555.78

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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.