Home / 13,725.26-20,561.58-8,161.76

Finding the Fourth Proportional to 13,725.26, 20,561.58 and 8,161.76

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Solution

The fourth proportional to 13,725.26, 20,561.58 and 8,161.76 is: 12,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.26 : 20,561.58 = 8,161.76 : x
  2. Step 2: Convert to fraction form
    13,725.26/20,561.58 = 8,161.76/x
  3. Step 3: Cross multiply
    13,725.26x = 20,561.58 × 8,161.76
  4. Step 4: Simplify right side
    13,725.26x = 167,818,681.18
  5. Step 5: Solve for x
    x = 167,818,681.18/13,725.26
  6. Step 6: Final answer
    x = 12,226.99

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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.