Home / 19,664.40-29,486.34-7,183.92

Finding the Fourth Proportional to 19,664.40, 29,486.34 and 7,183.92

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Solution

The fourth proportional to 19,664.40, 29,486.34 and 7,183.92 is: 10,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.40 : 29,486.34 = 7,183.92 : x
  2. Step 2: Convert to fraction form
    19,664.40/29,486.34 = 7,183.92/x
  3. Step 3: Cross multiply
    19,664.40x = 29,486.34 × 7,183.92
  4. Step 4: Simplify right side
    19,664.40x = 211,827,507.65
  5. Step 5: Solve for x
    x = 211,827,507.65/19,664.40
  6. Step 6: Final answer
    x = 10,772.13

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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.