Home / 19,665.39-29,497.77-7,185.36

Finding the Fourth Proportional to 19,665.39, 29,497.77 and 7,185.36

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Solution

The fourth proportional to 19,665.39, 29,497.77 and 7,185.36 is: 10,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.39 : 29,497.77 = 7,185.36 : x
  2. Step 2: Convert to fraction form
    19,665.39/29,497.77 = 7,185.36/x
  3. Step 3: Cross multiply
    19,665.39x = 29,497.77 × 7,185.36
  4. Step 4: Simplify right side
    19,665.39x = 211,952,096.65
  5. Step 5: Solve for x
    x = 211,952,096.65/19,665.39
  6. Step 6: Final answer
    x = 10,777.92

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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.