Home / 13,420.32-20,040.11-10,960.02

Finding the Fourth Proportional to 13,420.32, 20,040.11 and 10,960.02

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Solution

The fourth proportional to 13,420.32, 20,040.11 and 10,960.02 is: 16,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.32 : 20,040.11 = 10,960.02 : x
  2. Step 2: Convert to fraction form
    13,420.32/20,040.11 = 10,960.02/x
  3. Step 3: Cross multiply
    13,420.32x = 20,040.11 × 10,960.02
  4. Step 4: Simplify right side
    13,420.32x = 219,640,006.40
  5. Step 5: Solve for x
    x = 219,640,006.40/13,420.32
  6. Step 6: Final answer
    x = 16,366.23

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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.