Home / 14,229.87-21,345.84-5,464.78

Finding the Fourth Proportional to 14,229.87, 21,345.84 and 5,464.78

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Solution

The fourth proportional to 14,229.87, 21,345.84 and 5,464.78 is: 8,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.87 : 21,345.84 = 5,464.78 : x
  2. Step 2: Convert to fraction form
    14,229.87/21,345.84 = 5,464.78/x
  3. Step 3: Cross multiply
    14,229.87x = 21,345.84 × 5,464.78
  4. Step 4: Simplify right side
    14,229.87x = 116,650,319.52
  5. Step 5: Solve for x
    x = 116,650,319.52/14,229.87
  6. Step 6: Final answer
    x = 8,197.57

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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.