Home / 13,846.28-19,108.44-7,878.98

Finding the Fourth Proportional to 13,846.28, 19,108.44 and 7,878.98

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Solution

The fourth proportional to 13,846.28, 19,108.44 and 7,878.98 is: 10,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,846.28 : 19,108.44 = 7,878.98 : x
  2. Step 2: Convert to fraction form
    13,846.28/19,108.44 = 7,878.98/x
  3. Step 3: Cross multiply
    13,846.28x = 19,108.44 × 7,878.98
  4. Step 4: Simplify right side
    13,846.28x = 150,555,016.59
  5. Step 5: Solve for x
    x = 150,555,016.59/13,846.28
  6. Step 6: Final answer
    x = 10,873.32

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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.