Home / 8,545.92-12,816.36-3,615.45

Finding the Fourth Proportional to 8,545.92, 12,816.36 and 3,615.45

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Solution

The fourth proportional to 8,545.92, 12,816.36 and 3,615.45 is: 5,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.92 : 12,816.36 = 3,615.45 : x
  2. Step 2: Convert to fraction form
    8,545.92/12,816.36 = 3,615.45/x
  3. Step 3: Cross multiply
    8,545.92x = 12,816.36 × 3,615.45
  4. Step 4: Simplify right side
    8,545.92x = 46,336,908.76
  5. Step 5: Solve for x
    x = 46,336,908.76/8,545.92
  6. Step 6: Final answer
    x = 5,422.11

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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.