Home / 19,614.81-29,419.11-8,518.51

Finding the Fourth Proportional to 19,614.81, 29,419.11 and 8,518.51

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Solution

The fourth proportional to 19,614.81, 29,419.11 and 8,518.51 is: 12,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.81 : 29,419.11 = 8,518.51 : x
  2. Step 2: Convert to fraction form
    19,614.81/29,419.11 = 8,518.51/x
  3. Step 3: Cross multiply
    19,614.81x = 29,419.11 × 8,518.51
  4. Step 4: Simplify right side
    19,614.81x = 250,606,982.73
  5. Step 5: Solve for x
    x = 250,606,982.73/19,614.81
  6. Step 6: Final answer
    x = 12,776.42

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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.