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Finding the Fourth Proportional to 15,192.46, 20,962.46 and 8,730.85

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Solution

The fourth proportional to 15,192.46, 20,962.46 and 8,730.85 is: 12,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.46 : 20,962.46 = 8,730.85 : x
  2. Step 2: Convert to fraction form
    15,192.46/20,962.46 = 8,730.85/x
  3. Step 3: Cross multiply
    15,192.46x = 20,962.46 × 8,730.85
  4. Step 4: Simplify right side
    15,192.46x = 183,020,093.89
  5. Step 5: Solve for x
    x = 183,020,093.89/15,192.46
  6. Step 6: Final answer
    x = 12,046.77

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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.