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Finding the Fourth Proportional to 14,540.64, 21,806.64 and 5,307.36

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Solution

The fourth proportional to 14,540.64, 21,806.64 and 5,307.36 is: 7,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.64 : 21,806.64 = 5,307.36 : x
  2. Step 2: Convert to fraction form
    14,540.64/21,806.64 = 5,307.36/x
  3. Step 3: Cross multiply
    14,540.64x = 21,806.64 × 5,307.36
  4. Step 4: Simplify right side
    14,540.64x = 115,735,688.87
  5. Step 5: Solve for x
    x = 115,735,688.87/14,540.64
  6. Step 6: Final answer
    x = 7,959.46

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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.