Home / 14,515.20-21,743.64-7,115.04

Finding the Fourth Proportional to 14,515.20, 21,743.64 and 7,115.04

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Solution

The fourth proportional to 14,515.20, 21,743.64 and 7,115.04 is: 10,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.20 : 21,743.64 = 7,115.04 : x
  2. Step 2: Convert to fraction form
    14,515.20/21,743.64 = 7,115.04/x
  3. Step 3: Cross multiply
    14,515.20x = 21,743.64 × 7,115.04
  4. Step 4: Simplify right side
    14,515.20x = 154,706,868.35
  5. Step 5: Solve for x
    x = 154,706,868.35/14,515.20
  6. Step 6: Final answer
    x = 10,658.27

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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.