Home / 19,553.40-29,344.68-7,866.72

Finding the Fourth Proportional to 19,553.40, 29,344.68 and 7,866.72

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Solution

The fourth proportional to 19,553.40, 29,344.68 and 7,866.72 is: 11,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.40 : 29,344.68 = 7,866.72 : x
  2. Step 2: Convert to fraction form
    19,553.40/29,344.68 = 7,866.72/x
  3. Step 3: Cross multiply
    19,553.40x = 29,344.68 × 7,866.72
  4. Step 4: Simplify right side
    19,553.40x = 230,846,381.05
  5. Step 5: Solve for x
    x = 230,846,381.05/19,553.40
  6. Step 6: Final answer
    x = 11,805.95

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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.