Home / 19,439.57-29,160.67-6,611.51

Finding the Fourth Proportional to 19,439.57, 29,160.67 and 6,611.51

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Solution

The fourth proportional to 19,439.57, 29,160.67 and 6,611.51 is: 9,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.57 : 29,160.67 = 6,611.51 : x
  2. Step 2: Convert to fraction form
    19,439.57/29,160.67 = 6,611.51/x
  3. Step 3: Cross multiply
    19,439.57x = 29,160.67 × 6,611.51
  4. Step 4: Simplify right side
    19,439.57x = 192,796,197.15
  5. Step 5: Solve for x
    x = 192,796,197.15/19,439.57
  6. Step 6: Final answer
    x = 9,917.72

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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.