Home / 18,128.19-27,195.06-9,809.39

Finding the Fourth Proportional to 18,128.19, 27,195.06 and 9,809.39

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Solution

The fourth proportional to 18,128.19, 27,195.06 and 9,809.39 is: 14,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.19 : 27,195.06 = 9,809.39 : x
  2. Step 2: Convert to fraction form
    18,128.19/27,195.06 = 9,809.39/x
  3. Step 3: Cross multiply
    18,128.19x = 27,195.06 × 9,809.39
  4. Step 4: Simplify right side
    18,128.19x = 266,766,813.64
  5. Step 5: Solve for x
    x = 266,766,813.64/18,128.19
  6. Step 6: Final answer
    x = 14,715.58

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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.