Home / 14,429.07-19,912.41-8,141.43

Finding the Fourth Proportional to 14,429.07, 19,912.41 and 8,141.43

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Solution

The fourth proportional to 14,429.07, 19,912.41 and 8,141.43 is: 11,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.07 : 19,912.41 = 8,141.43 : x
  2. Step 2: Convert to fraction form
    14,429.07/19,912.41 = 8,141.43/x
  3. Step 3: Cross multiply
    14,429.07x = 19,912.41 × 8,141.43
  4. Step 4: Simplify right side
    14,429.07x = 162,115,492.15
  5. Step 5: Solve for x
    x = 162,115,492.15/14,429.07
  6. Step 6: Final answer
    x = 11,235.34

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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.