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Finding the Fourth Proportional to 8,652.46, 12,978.69 and 2,412.22

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Solution

The fourth proportional to 8,652.46, 12,978.69 and 2,412.22 is: 3,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.46 : 12,978.69 = 2,412.22 : x
  2. Step 2: Convert to fraction form
    8,652.46/12,978.69 = 2,412.22/x
  3. Step 3: Cross multiply
    8,652.46x = 12,978.69 × 2,412.22
  4. Step 4: Simplify right side
    8,652.46x = 31,307,455.59
  5. Step 5: Solve for x
    x = 31,307,455.59/8,652.46
  6. Step 6: Final answer
    x = 3,618.33

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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.