Home / 14,513.89-21,820.05-11,589.69

Finding the Fourth Proportional to 14,513.89, 21,820.05 and 11,589.69

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Solution

The fourth proportional to 14,513.89, 21,820.05 and 11,589.69 is: 17,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.89 : 21,820.05 = 11,589.69 : x
  2. Step 2: Convert to fraction form
    14,513.89/21,820.05 = 11,589.69/x
  3. Step 3: Cross multiply
    14,513.89x = 21,820.05 × 11,589.69
  4. Step 4: Simplify right side
    14,513.89x = 252,887,517.27
  5. Step 5: Solve for x
    x = 252,887,517.27/14,513.89
  6. Step 6: Final answer
    x = 17,423.83

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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.