Home / 14,143.96-21,207.60-5,379.48

Finding the Fourth Proportional to 14,143.96, 21,207.60 and 5,379.48

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Solution

The fourth proportional to 14,143.96, 21,207.60 and 5,379.48 is: 8,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.96 : 21,207.60 = 5,379.48 : x
  2. Step 2: Convert to fraction form
    14,143.96/21,207.60 = 5,379.48/x
  3. Step 3: Cross multiply
    14,143.96x = 21,207.60 × 5,379.48
  4. Step 4: Simplify right side
    14,143.96x = 114,085,860.05
  5. Step 5: Solve for x
    x = 114,085,860.05/14,143.96
  6. Step 6: Final answer
    x = 8,066.05

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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.