Home / 13,809.73-19,068.68-11,257.90

Finding the Fourth Proportional to 13,809.73, 19,068.68 and 11,257.90

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Solution

The fourth proportional to 13,809.73, 19,068.68 and 11,257.90 is: 15,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.73 : 19,068.68 = 11,257.90 : x
  2. Step 2: Convert to fraction form
    13,809.73/19,068.68 = 11,257.90/x
  3. Step 3: Cross multiply
    13,809.73x = 19,068.68 × 11,257.90
  4. Step 4: Simplify right side
    13,809.73x = 214,673,292.57
  5. Step 5: Solve for x
    x = 214,673,292.57/13,809.73
  6. Step 6: Final answer
    x = 15,545.08

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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.