Home / 14,421.78-21,634.83-4,557.90

Finding the Fourth Proportional to 14,421.78, 21,634.83 and 4,557.90

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Solution

The fourth proportional to 14,421.78, 21,634.83 and 4,557.90 is: 6,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.78 : 21,634.83 = 4,557.90 : x
  2. Step 2: Convert to fraction form
    14,421.78/21,634.83 = 4,557.90/x
  3. Step 3: Cross multiply
    14,421.78x = 21,634.83 × 4,557.90
  4. Step 4: Simplify right side
    14,421.78x = 98,609,391.66
  5. Step 5: Solve for x
    x = 98,609,391.66/14,421.78
  6. Step 6: Final answer
    x = 6,837.53

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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.