Home / 19,789.64-29,662.89-7,299.14

Finding the Fourth Proportional to 19,789.64, 29,662.89 and 7,299.14

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Solution

The fourth proportional to 19,789.64, 29,662.89 and 7,299.14 is: 10,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.64 : 29,662.89 = 7,299.14 : x
  2. Step 2: Convert to fraction form
    19,789.64/29,662.89 = 7,299.14/x
  3. Step 3: Cross multiply
    19,789.64x = 29,662.89 × 7,299.14
  4. Step 4: Simplify right side
    19,789.64x = 216,513,438.60
  5. Step 5: Solve for x
    x = 216,513,438.60/19,789.64
  6. Step 6: Final answer
    x = 10,940.75

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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.