Home / 13,825.40-20,738.10-5,061.20

Finding the Fourth Proportional to 13,825.40, 20,738.10 and 5,061.20

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Solution

The fourth proportional to 13,825.40, 20,738.10 and 5,061.20 is: 7,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.40 : 20,738.10 = 5,061.20 : x
  2. Step 2: Convert to fraction form
    13,825.40/20,738.10 = 5,061.20/x
  3. Step 3: Cross multiply
    13,825.40x = 20,738.10 × 5,061.20
  4. Step 4: Simplify right side
    13,825.40x = 104,959,671.72
  5. Step 5: Solve for x
    x = 104,959,671.72/13,825.40
  6. Step 6: Final answer
    x = 7,591.80

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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.