Home / 15,586.92-21,511.44-8,874.18

Finding the Fourth Proportional to 15,586.92, 21,511.44 and 8,874.18

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Solution

The fourth proportional to 15,586.92, 21,511.44 and 8,874.18 is: 12,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.92 : 21,511.44 = 8,874.18 : x
  2. Step 2: Convert to fraction form
    15,586.92/21,511.44 = 8,874.18/x
  3. Step 3: Cross multiply
    15,586.92x = 21,511.44 × 8,874.18
  4. Step 4: Simplify right side
    15,586.92x = 190,896,390.62
  5. Step 5: Solve for x
    x = 190,896,390.62/15,586.92
  6. Step 6: Final answer
    x = 12,247.22

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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.