Home / 13,299.80-19,928.10-8,360.60

Finding the Fourth Proportional to 13,299.80, 19,928.10 and 8,360.60

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Solution

The fourth proportional to 13,299.80, 19,928.10 and 8,360.60 is: 12,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.80 : 19,928.10 = 8,360.60 : x
  2. Step 2: Convert to fraction form
    13,299.80/19,928.10 = 8,360.60/x
  3. Step 3: Cross multiply
    13,299.80x = 19,928.10 × 8,360.60
  4. Step 4: Simplify right side
    13,299.80x = 166,610,872.86
  5. Step 5: Solve for x
    x = 166,610,872.86/13,299.80
  6. Step 6: Final answer
    x = 12,527.32

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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.