Home / 13,420.57-20,040.48-10,960.27

Finding the Fourth Proportional to 13,420.57, 20,040.48 and 10,960.27

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Solution

The fourth proportional to 13,420.57, 20,040.48 and 10,960.27 is: 16,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.57 : 20,040.48 = 10,960.27 : x
  2. Step 2: Convert to fraction form
    13,420.57/20,040.48 = 10,960.27/x
  3. Step 3: Cross multiply
    13,420.57x = 20,040.48 × 10,960.27
  4. Step 4: Simplify right side
    13,420.57x = 219,649,071.73
  5. Step 5: Solve for x
    x = 219,649,071.73/13,420.57
  6. Step 6: Final answer
    x = 16,366.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.