Home / 13,595.57-18,705.71-11,020.38

Finding the Fourth Proportional to 13,595.57, 18,705.71 and 11,020.38

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Solution

The fourth proportional to 13,595.57, 18,705.71 and 11,020.38 is: 15,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.57 : 18,705.71 = 11,020.38 : x
  2. Step 2: Convert to fraction form
    13,595.57/18,705.71 = 11,020.38/x
  3. Step 3: Cross multiply
    13,595.57x = 18,705.71 × 11,020.38
  4. Step 4: Simplify right side
    13,595.57x = 206,144,032.37
  5. Step 5: Solve for x
    x = 206,144,032.37/13,595.57
  6. Step 6: Final answer
    x = 15,162.59

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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.