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Finding the Fourth Proportional to 12,360.78, 18,527.04 and 4,459.68

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Solution

The fourth proportional to 12,360.78, 18,527.04 and 4,459.68 is: 6,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.78 : 18,527.04 = 4,459.68 : x
  2. Step 2: Convert to fraction form
    12,360.78/18,527.04 = 4,459.68/x
  3. Step 3: Cross multiply
    12,360.78x = 18,527.04 × 4,459.68
  4. Step 4: Simplify right side
    12,360.78x = 82,624,669.75
  5. Step 5: Solve for x
    x = 82,624,669.75/12,360.78
  6. Step 6: Final answer
    x = 6,684.42

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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.