Home / 19,601.40-29,399.10-6,453.80

Finding the Fourth Proportional to 19,601.40, 29,399.10 and 6,453.80

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Solution

The fourth proportional to 19,601.40, 29,399.10 and 6,453.80 is: 9,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,601.40 : 29,399.10 = 6,453.80 : x
  2. Step 2: Convert to fraction form
    19,601.40/29,399.10 = 6,453.80/x
  3. Step 3: Cross multiply
    19,601.40x = 29,399.10 × 6,453.80
  4. Step 4: Simplify right side
    19,601.40x = 189,735,911.58
  5. Step 5: Solve for x
    x = 189,735,911.58/19,601.40
  6. Step 6: Final answer
    x = 9,679.71

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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.