Home / 14,168.34-21,235.68-5,394.78

Finding the Fourth Proportional to 14,168.34, 21,235.68 and 5,394.78

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Solution

The fourth proportional to 14,168.34, 21,235.68 and 5,394.78 is: 8,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.34 : 21,235.68 = 5,394.78 : x
  2. Step 2: Convert to fraction form
    14,168.34/21,235.68 = 5,394.78/x
  3. Step 3: Cross multiply
    14,168.34x = 21,235.68 × 5,394.78
  4. Step 4: Simplify right side
    14,168.34x = 114,561,821.75
  5. Step 5: Solve for x
    x = 114,561,821.75/14,168.34
  6. Step 6: Final answer
    x = 8,085.76

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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.