Home / 18,801.59-28,193.13-7,705.26

Finding the Fourth Proportional to 18,801.59, 28,193.13 and 7,705.26

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Solution

The fourth proportional to 18,801.59, 28,193.13 and 7,705.26 is: 11,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.59 : 28,193.13 = 7,705.26 : x
  2. Step 2: Convert to fraction form
    18,801.59/28,193.13 = 7,705.26/x
  3. Step 3: Cross multiply
    18,801.59x = 28,193.13 × 7,705.26
  4. Step 4: Simplify right side
    18,801.59x = 217,235,396.86
  5. Step 5: Solve for x
    x = 217,235,396.86/18,801.59
  6. Step 6: Final answer
    x = 11,554.10

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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.