Home / 14,268.42-21,388.05-4,905.63

Finding the Fourth Proportional to 14,268.42, 21,388.05 and 4,905.63

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Solution

The fourth proportional to 14,268.42, 21,388.05 and 4,905.63 is: 7,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.42 : 21,388.05 = 4,905.63 : x
  2. Step 2: Convert to fraction form
    14,268.42/21,388.05 = 4,905.63/x
  3. Step 3: Cross multiply
    14,268.42x = 21,388.05 × 4,905.63
  4. Step 4: Simplify right side
    14,268.42x = 104,921,859.72
  5. Step 5: Solve for x
    x = 104,921,859.72/14,268.42
  6. Step 6: Final answer
    x = 7,353.43

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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.