Home / 14,429.06-19,912.62-8,378.86

Finding the Fourth Proportional to 14,429.06, 19,912.62 and 8,378.86

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Solution

The fourth proportional to 14,429.06, 19,912.62 and 8,378.86 is: 11,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.06 : 19,912.62 = 8,378.86 : x
  2. Step 2: Convert to fraction form
    14,429.06/19,912.62 = 8,378.86/x
  3. Step 3: Cross multiply
    14,429.06x = 19,912.62 × 8,378.86
  4. Step 4: Simplify right side
    14,429.06x = 166,844,955.65
  5. Step 5: Solve for x
    x = 166,844,955.65/14,429.06
  6. Step 6: Final answer
    x = 11,563.12

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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.