Home / 15,619.10-21,554.18-8,545.44

Finding the Fourth Proportional to 15,619.10, 21,554.18 and 8,545.44

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Solution

The fourth proportional to 15,619.10, 21,554.18 and 8,545.44 is: 11,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.10 : 21,554.18 = 8,545.44 : x
  2. Step 2: Convert to fraction form
    15,619.10/21,554.18 = 8,545.44/x
  3. Step 3: Cross multiply
    15,619.10x = 21,554.18 × 8,545.44
  4. Step 4: Simplify right side
    15,619.10x = 184,189,951.94
  5. Step 5: Solve for x
    x = 184,189,951.94/15,619.10
  6. Step 6: Final answer
    x = 11,792.61

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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.