Home / 13,515.58-18,660.27-12,096.81

Finding the Fourth Proportional to 13,515.58, 18,660.27 and 12,096.81

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Solution

The fourth proportional to 13,515.58, 18,660.27 and 12,096.81 is: 16,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.58 : 18,660.27 = 12,096.81 : x
  2. Step 2: Convert to fraction form
    13,515.58/18,660.27 = 12,096.81/x
  3. Step 3: Cross multiply
    13,515.58x = 18,660.27 × 12,096.81
  4. Step 4: Simplify right side
    13,515.58x = 225,729,647.44
  5. Step 5: Solve for x
    x = 225,729,647.44/13,515.58
  6. Step 6: Final answer
    x = 16,701.45

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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.