Home / 12,660.04-18,993.90-8,969.41

Finding the Fourth Proportional to 12,660.04, 18,993.90 and 8,969.41

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Solution

The fourth proportional to 12,660.04, 18,993.90 and 8,969.41 is: 13,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.04 : 18,993.90 = 8,969.41 : x
  2. Step 2: Convert to fraction form
    12,660.04/18,993.90 = 8,969.41/x
  3. Step 3: Cross multiply
    12,660.04x = 18,993.90 × 8,969.41
  4. Step 4: Simplify right side
    12,660.04x = 170,364,076.60
  5. Step 5: Solve for x
    x = 170,364,076.60/12,660.04
  6. Step 6: Final answer
    x = 13,456.84

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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.