Home / 13,845.40-19,098.14-9,867.80

Finding the Fourth Proportional to 13,845.40, 19,098.14 and 9,867.80

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Solution

The fourth proportional to 13,845.40, 19,098.14 and 9,867.80 is: 13,611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.40 : 19,098.14 = 9,867.80 : x
  2. Step 2: Convert to fraction form
    13,845.40/19,098.14 = 9,867.80/x
  3. Step 3: Cross multiply
    13,845.40x = 19,098.14 × 9,867.80
  4. Step 4: Simplify right side
    13,845.40x = 188,456,625.89
  5. Step 5: Solve for x
    x = 188,456,625.89/13,845.40
  6. Step 6: Final answer
    x = 13,611.50

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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.