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Finding the Fourth Proportional to 8,160.99, 12,246.09 and 3,480.50

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Solution

The fourth proportional to 8,160.99, 12,246.09 and 3,480.50 is: 5,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.99 : 12,246.09 = 3,480.50 : x
  2. Step 2: Convert to fraction form
    8,160.99/12,246.09 = 3,480.50/x
  3. Step 3: Cross multiply
    8,160.99x = 12,246.09 × 3,480.50
  4. Step 4: Simplify right side
    8,160.99x = 42,622,533.81
  5. Step 5: Solve for x
    x = 42,622,533.81/8,160.99
  6. Step 6: Final answer
    x = 5,222.72

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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.