Home / 13,516.44-20,272.20-5,725.84

Finding the Fourth Proportional to 13,516.44, 20,272.20 and 5,725.84

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Solution

The fourth proportional to 13,516.44, 20,272.20 and 5,725.84 is: 8,587.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.44 : 20,272.20 = 5,725.84 : x
  2. Step 2: Convert to fraction form
    13,516.44/20,272.20 = 5,725.84/x
  3. Step 3: Cross multiply
    13,516.44x = 20,272.20 × 5,725.84
  4. Step 4: Simplify right side
    13,516.44x = 116,075,373.65
  5. Step 5: Solve for x
    x = 116,075,373.65/13,516.44
  6. Step 6: Final answer
    x = 8,587.72

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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.