Home / 13,456.50-20,185.47-4,095.80

Finding the Fourth Proportional to 13,456.50, 20,185.47 and 4,095.80

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Solution

The fourth proportional to 13,456.50, 20,185.47 and 4,095.80 is: 6,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.50 : 20,185.47 = 4,095.80 : x
  2. Step 2: Convert to fraction form
    13,456.50/20,185.47 = 4,095.80/x
  3. Step 3: Cross multiply
    13,456.50x = 20,185.47 × 4,095.80
  4. Step 4: Simplify right side
    13,456.50x = 82,675,627.55
  5. Step 5: Solve for x
    x = 82,675,627.55/13,456.50
  6. Step 6: Final answer
    x = 6,143.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.