Home / 14,558.40-21,826.80-6,231.60

Finding the Fourth Proportional to 14,558.40, 21,826.80 and 6,231.60

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Solution

The fourth proportional to 14,558.40, 21,826.80 and 6,231.60 is: 9,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.40 : 21,826.80 = 6,231.60 : x
  2. Step 2: Convert to fraction form
    14,558.40/21,826.80 = 6,231.60/x
  3. Step 3: Cross multiply
    14,558.40x = 21,826.80 × 6,231.60
  4. Step 4: Simplify right side
    14,558.40x = 136,015,886.88
  5. Step 5: Solve for x
    x = 136,015,886.88/14,558.40
  6. Step 6: Final answer
    x = 9,342.78

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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.