Home / 13,179.92-19,636.78-12,552.98

Finding the Fourth Proportional to 13,179.92, 19,636.78 and 12,552.98

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Solution

The fourth proportional to 13,179.92, 19,636.78 and 12,552.98 is: 18,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.92 : 19,636.78 = 12,552.98 : x
  2. Step 2: Convert to fraction form
    13,179.92/19,636.78 = 12,552.98/x
  3. Step 3: Cross multiply
    13,179.92x = 19,636.78 × 12,552.98
  4. Step 4: Simplify right side
    13,179.92x = 246,500,000.57
  5. Step 5: Solve for x
    x = 246,500,000.57/13,179.92
  6. Step 6: Final answer
    x = 18,702.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.