Home / 13,799.63-19,043.49-7,512

Finding the Fourth Proportional to 13,799.63, 19,043.49 and 7,512

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Solution

The fourth proportional to 13,799.63, 19,043.49 and 7,512 is: 10,366.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.63 : 19,043.49 = 7,512 : x
  2. Step 2: Convert to fraction form
    13,799.63/19,043.49 = 7,512/x
  3. Step 3: Cross multiply
    13,799.63x = 19,043.49 × 7,512
  4. Step 4: Simplify right side
    13,799.63x = 143,054,659.32
  5. Step 5: Solve for x
    x = 143,054,659.32/13,799.63
  6. Step 6: Final answer
    x = 10,366.56

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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.