Home / 13,900.70-20,852.13-4,040.12

Finding the Fourth Proportional to 13,900.70, 20,852.13 and 4,040.12

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Solution

The fourth proportional to 13,900.70, 20,852.13 and 4,040.12 is: 6,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.70 : 20,852.13 = 4,040.12 : x
  2. Step 2: Convert to fraction form
    13,900.70/20,852.13 = 4,040.12/x
  3. Step 3: Cross multiply
    13,900.70x = 20,852.13 × 4,040.12
  4. Step 4: Simplify right side
    13,900.70x = 84,245,107.46
  5. Step 5: Solve for x
    x = 84,245,107.46/13,900.70
  6. Step 6: Final answer
    x = 6,060.49

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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.