Home / 13,554.35-20,328.38-3,691.65

Finding the Fourth Proportional to 13,554.35, 20,328.38 and 3,691.65

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Solution

The fourth proportional to 13,554.35, 20,328.38 and 3,691.65 is: 5,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.35 : 20,328.38 = 3,691.65 : x
  2. Step 2: Convert to fraction form
    13,554.35/20,328.38 = 3,691.65/x
  3. Step 3: Cross multiply
    13,554.35x = 20,328.38 × 3,691.65
  4. Step 4: Simplify right side
    13,554.35x = 75,045,264.03
  5. Step 5: Solve for x
    x = 75,045,264.03/13,554.35
  6. Step 6: Final answer
    x = 5,536.62

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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.