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Finding the Fourth Proportional to 8,312.46, 12,474.09 and 4,419.60

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Solution

The fourth proportional to 8,312.46, 12,474.09 and 4,419.60 is: 6,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.46 : 12,474.09 = 4,419.60 : x
  2. Step 2: Convert to fraction form
    8,312.46/12,474.09 = 4,419.60/x
  3. Step 3: Cross multiply
    8,312.46x = 12,474.09 × 4,419.60
  4. Step 4: Simplify right side
    8,312.46x = 55,130,488.16
  5. Step 5: Solve for x
    x = 55,130,488.16/8,312.46
  6. Step 6: Final answer
    x = 6,632.27

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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.