Home / 12,237.96-18,351.81-3,915.75

Finding the Fourth Proportional to 12,237.96, 18,351.81 and 3,915.75

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Solution

The fourth proportional to 12,237.96, 18,351.81 and 3,915.75 is: 5,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.96 : 18,351.81 = 3,915.75 : x
  2. Step 2: Convert to fraction form
    12,237.96/18,351.81 = 3,915.75/x
  3. Step 3: Cross multiply
    12,237.96x = 18,351.81 × 3,915.75
  4. Step 4: Simplify right side
    12,237.96x = 71,861,100.01
  5. Step 5: Solve for x
    x = 71,861,100.01/12,237.96
  6. Step 6: Final answer
    x = 5,871.98

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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.