Home / 13,040.55-17,990.37-8,794.35

Finding the Fourth Proportional to 13,040.55, 17,990.37 and 8,794.35

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Solution

The fourth proportional to 13,040.55, 17,990.37 and 8,794.35 is: 12,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.55 : 17,990.37 = 8,794.35 : x
  2. Step 2: Convert to fraction form
    13,040.55/17,990.37 = 8,794.35/x
  3. Step 3: Cross multiply
    13,040.55x = 17,990.37 × 8,794.35
  4. Step 4: Simplify right side
    13,040.55x = 158,213,610.41
  5. Step 5: Solve for x
    x = 158,213,610.41/13,040.55
  6. Step 6: Final answer
    x = 12,132.43

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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.