Home / 8,516.45-12,775.49-3,585.17

Finding the Fourth Proportional to 8,516.45, 12,775.49 and 3,585.17

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Solution

The fourth proportional to 8,516.45, 12,775.49 and 3,585.17 is: 5,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.45 : 12,775.49 = 3,585.17 : x
  2. Step 2: Convert to fraction form
    8,516.45/12,775.49 = 3,585.17/x
  3. Step 3: Cross multiply
    8,516.45x = 12,775.49 × 3,585.17
  4. Step 4: Simplify right side
    8,516.45x = 45,802,303.48
  5. Step 5: Solve for x
    x = 45,802,303.48/8,516.45
  6. Step 6: Final answer
    x = 5,378.10

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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.