Home / 8,545.70-12,814.69-3,612.80

Finding the Fourth Proportional to 8,545.70, 12,814.69 and 3,612.80

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Solution

The fourth proportional to 8,545.70, 12,814.69 and 3,612.80 is: 5,417.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.70 : 12,814.69 = 3,612.80 : x
  2. Step 2: Convert to fraction form
    8,545.70/12,814.69 = 3,612.80/x
  3. Step 3: Cross multiply
    8,545.70x = 12,814.69 × 3,612.80
  4. Step 4: Simplify right side
    8,545.70x = 46,296,912.03
  5. Step 5: Solve for x
    x = 46,296,912.03/8,545.70
  6. Step 6: Final answer
    x = 5,417.57

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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.