Home / 8,545.10-12,812.19-3,612.20

Finding the Fourth Proportional to 8,545.10, 12,812.19 and 3,612.20

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Solution

The fourth proportional to 8,545.10, 12,812.19 and 3,612.20 is: 5,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.10 : 12,812.19 = 3,612.20 : x
  2. Step 2: Convert to fraction form
    8,545.10/12,812.19 = 3,612.20/x
  3. Step 3: Cross multiply
    8,545.10x = 12,812.19 × 3,612.20
  4. Step 4: Simplify right side
    8,545.10x = 46,280,192.72
  5. Step 5: Solve for x
    x = 46,280,192.72/8,545.10
  6. Step 6: Final answer
    x = 5,415.99

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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.