Home / 13,867.52-19,137.20-7,579.88

Finding the Fourth Proportional to 13,867.52, 19,137.20 and 7,579.88

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Solution

The fourth proportional to 13,867.52, 19,137.20 and 7,579.88 is: 10,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.52 : 19,137.20 = 7,579.88 : x
  2. Step 2: Convert to fraction form
    13,867.52/19,137.20 = 7,579.88/x
  3. Step 3: Cross multiply
    13,867.52x = 19,137.20 × 7,579.88
  4. Step 4: Simplify right side
    13,867.52x = 145,057,679.54
  5. Step 5: Solve for x
    x = 145,057,679.54/13,867.52
  6. Step 6: Final answer
    x = 10,460.25

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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.