Home / 14,135.72-21,203.04-5,813.42

Finding the Fourth Proportional to 14,135.72, 21,203.04 and 5,813.42

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Solution

The fourth proportional to 14,135.72, 21,203.04 and 5,813.42 is: 8,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.72 : 21,203.04 = 5,813.42 : x
  2. Step 2: Convert to fraction form
    14,135.72/21,203.04 = 5,813.42/x
  3. Step 3: Cross multiply
    14,135.72x = 21,203.04 × 5,813.42
  4. Step 4: Simplify right side
    14,135.72x = 123,262,176.80
  5. Step 5: Solve for x
    x = 123,262,176.80/14,135.72
  6. Step 6: Final answer
    x = 8,719.91

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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.