Home / 14,615.73-20,168.67-8,242.56

Finding the Fourth Proportional to 14,615.73, 20,168.67 and 8,242.56

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Solution

The fourth proportional to 14,615.73, 20,168.67 and 8,242.56 is: 11,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.73 : 20,168.67 = 8,242.56 : x
  2. Step 2: Convert to fraction form
    14,615.73/20,168.67 = 8,242.56/x
  3. Step 3: Cross multiply
    14,615.73x = 20,168.67 × 8,242.56
  4. Step 4: Simplify right side
    14,615.73x = 166,241,472.60
  5. Step 5: Solve for x
    x = 166,241,472.60/14,615.73
  6. Step 6: Final answer
    x = 11,374.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.