Home / 12,577.05-18,867.99-4,785.24

Finding the Fourth Proportional to 12,577.05, 18,867.99 and 4,785.24

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Solution

The fourth proportional to 12,577.05, 18,867.99 and 4,785.24 is: 7,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.05 : 18,867.99 = 4,785.24 : x
  2. Step 2: Convert to fraction form
    12,577.05/18,867.99 = 4,785.24/x
  3. Step 3: Cross multiply
    12,577.05x = 18,867.99 × 4,785.24
  4. Step 4: Simplify right side
    12,577.05x = 90,287,860.47
  5. Step 5: Solve for x
    x = 90,287,860.47/12,577.05
  6. Step 6: Final answer
    x = 7,178.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.