Home / 12,669.57-19,005.46-3,309.51

Finding the Fourth Proportional to 12,669.57, 19,005.46 and 3,309.51

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Solution

The fourth proportional to 12,669.57, 19,005.46 and 3,309.51 is: 4,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.57 : 19,005.46 = 3,309.51 : x
  2. Step 2: Convert to fraction form
    12,669.57/19,005.46 = 3,309.51/x
  3. Step 3: Cross multiply
    12,669.57x = 19,005.46 × 3,309.51
  4. Step 4: Simplify right side
    12,669.57x = 62,898,740.30
  5. Step 5: Solve for x
    x = 62,898,740.30/12,669.57
  6. Step 6: Final answer
    x = 4,964.55

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1.5x scale

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.