Home / 19,405.60-26,778.96-11,864.62

Finding the Fourth Proportional to 19,405.60, 26,778.96 and 11,864.62

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Solution

The fourth proportional to 19,405.60, 26,778.96 and 11,864.62 is: 16,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.60 : 26,778.96 = 11,864.62 : x
  2. Step 2: Convert to fraction form
    19,405.60/26,778.96 = 11,864.62/x
  3. Step 3: Cross multiply
    19,405.60x = 26,778.96 × 11,864.62
  4. Step 4: Simplify right side
    19,405.60x = 317,722,184.40
  5. Step 5: Solve for x
    x = 317,722,184.40/19,405.60
  6. Step 6: Final answer
    x = 16,372.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.