Home / 13,799.44-19,043-7,511.60

Finding the Fourth Proportional to 13,799.44, 19,043 and 7,511.60

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Solution

The fourth proportional to 13,799.44, 19,043 and 7,511.60 is: 10,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.44 : 19,043 = 7,511.60 : x
  2. Step 2: Convert to fraction form
    13,799.44/19,043 = 7,511.60/x
  3. Step 3: Cross multiply
    13,799.44x = 19,043 × 7,511.60
  4. Step 4: Simplify right side
    13,799.44x = 143,043,398.80
  5. Step 5: Solve for x
    x = 143,043,398.80/13,799.44
  6. Step 6: Final answer
    x = 10,365.88

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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.