Home / 13,955.05-19,257.42-8,649.78

Finding the Fourth Proportional to 13,955.05, 19,257.42 and 8,649.78

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Solution

The fourth proportional to 13,955.05, 19,257.42 and 8,649.78 is: 11,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.05 : 19,257.42 = 8,649.78 : x
  2. Step 2: Convert to fraction form
    13,955.05/19,257.42 = 8,649.78/x
  3. Step 3: Cross multiply
    13,955.05x = 19,257.42 × 8,649.78
  4. Step 4: Simplify right side
    13,955.05x = 166,572,350.08
  5. Step 5: Solve for x
    x = 166,572,350.08/13,955.05
  6. Step 6: Final answer
    x = 11,936.35

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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.