Home / 14,589.87-20,133.55-8,216.79

Finding the Fourth Proportional to 14,589.87, 20,133.55 and 8,216.79

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Solution

The fourth proportional to 14,589.87, 20,133.55 and 8,216.79 is: 11,338.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,589.87 : 20,133.55 = 8,216.79 : x
  2. Step 2: Convert to fraction form
    14,589.87/20,133.55 = 8,216.79/x
  3. Step 3: Cross multiply
    14,589.87x = 20,133.55 × 8,216.79
  4. Step 4: Simplify right side
    14,589.87x = 165,433,152.30
  5. Step 5: Solve for x
    x = 165,433,152.30/14,589.87
  6. Step 6: Final answer
    x = 11,338.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.