Home / 12,669.87-19,005.09-3,904.77

Finding the Fourth Proportional to 12,669.87, 19,005.09 and 3,904.77

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Solution

The fourth proportional to 12,669.87, 19,005.09 and 3,904.77 is: 5,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.87 : 19,005.09 = 3,904.77 : x
  2. Step 2: Convert to fraction form
    12,669.87/19,005.09 = 3,904.77/x
  3. Step 3: Cross multiply
    12,669.87x = 19,005.09 × 3,904.77
  4. Step 4: Simplify right side
    12,669.87x = 74,210,505.28
  5. Step 5: Solve for x
    x = 74,210,505.28/12,669.87
  6. Step 6: Final answer
    x = 5,857.24

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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.