Home / 19,469.80-29,207.58-7,782.76

Finding the Fourth Proportional to 19,469.80, 29,207.58 and 7,782.76

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Solution

The fourth proportional to 19,469.80, 29,207.58 and 7,782.76 is: 11,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,469.80 : 29,207.58 = 7,782.76 : x
  2. Step 2: Convert to fraction form
    19,469.80/29,207.58 = 7,782.76/x
  3. Step 3: Cross multiply
    19,469.80x = 29,207.58 × 7,782.76
  4. Step 4: Simplify right side
    19,469.80x = 227,315,585.32
  5. Step 5: Solve for x
    x = 227,315,585.32/19,469.80
  6. Step 6: Final answer
    x = 11,675.29

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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.