Home / 12,545.23-18,817.85-3,185.95

Finding the Fourth Proportional to 12,545.23, 18,817.85 and 3,185.95

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Solution

The fourth proportional to 12,545.23, 18,817.85 and 3,185.95 is: 4,778.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.23 : 18,817.85 = 3,185.95 : x
  2. Step 2: Convert to fraction form
    12,545.23/18,817.85 = 3,185.95/x
  3. Step 3: Cross multiply
    12,545.23x = 18,817.85 × 3,185.95
  4. Step 4: Simplify right side
    12,545.23x = 59,952,725.41
  5. Step 5: Solve for x
    x = 59,952,725.41/12,545.23
  6. Step 6: Final answer
    x = 4,778.93

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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.