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Finding the Fourth Proportional to 15,116.58, 20,865.33 and 8,830.44

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Solution

The fourth proportional to 15,116.58, 20,865.33 and 8,830.44 is: 12,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.58 : 20,865.33 = 8,830.44 : x
  2. Step 2: Convert to fraction form
    15,116.58/20,865.33 = 8,830.44/x
  3. Step 3: Cross multiply
    15,116.58x = 20,865.33 × 8,830.44
  4. Step 4: Simplify right side
    15,116.58x = 184,250,044.65
  5. Step 5: Solve for x
    x = 184,250,044.65/15,116.58
  6. Step 6: Final answer
    x = 12,188.61

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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.