Home / 19,477.43-29,195.09-7,777.79

Finding the Fourth Proportional to 19,477.43, 29,195.09 and 7,777.79

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Solution

The fourth proportional to 19,477.43, 29,195.09 and 7,777.79 is: 11,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,477.43 : 29,195.09 = 7,777.79 : x
  2. Step 2: Convert to fraction form
    19,477.43/29,195.09 = 7,777.79/x
  3. Step 3: Cross multiply
    19,477.43x = 29,195.09 × 7,777.79
  4. Step 4: Simplify right side
    19,477.43x = 227,073,240.16
  5. Step 5: Solve for x
    x = 227,073,240.16/19,477.43
  6. Step 6: Final answer
    x = 11,658.28

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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.