Home / 13,825.56-20,638.05-12,797.76

Finding the Fourth Proportional to 13,825.56, 20,638.05 and 12,797.76

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Solution

The fourth proportional to 13,825.56, 20,638.05 and 12,797.76 is: 19,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.56 : 20,638.05 = 12,797.76 : x
  2. Step 2: Convert to fraction form
    13,825.56/20,638.05 = 12,797.76/x
  3. Step 3: Cross multiply
    13,825.56x = 20,638.05 × 12,797.76
  4. Step 4: Simplify right side
    13,825.56x = 264,120,810.77
  5. Step 5: Solve for x
    x = 264,120,810.77/13,825.56
  6. Step 6: Final answer
    x = 19,103.81

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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.