Home / 19,707.45-29,579.40-9,853.80

Finding the Fourth Proportional to 19,707.45, 29,579.40 and 9,853.80

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Solution

The fourth proportional to 19,707.45, 29,579.40 and 9,853.80 is: 14,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.45 : 29,579.40 = 9,853.80 : x
  2. Step 2: Convert to fraction form
    19,707.45/29,579.40 = 9,853.80/x
  3. Step 3: Cross multiply
    19,707.45x = 29,579.40 × 9,853.80
  4. Step 4: Simplify right side
    19,707.45x = 291,469,491.72
  5. Step 5: Solve for x
    x = 291,469,491.72/19,707.45
  6. Step 6: Final answer
    x = 14,789.81

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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.