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Finding the Fourth Proportional to 14,616.50, 21,913.80 and 4,749.89

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Solution

The fourth proportional to 14,616.50, 21,913.80 and 4,749.89 is: 7,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.50 : 21,913.80 = 4,749.89 : x
  2. Step 2: Convert to fraction form
    14,616.50/21,913.80 = 4,749.89/x
  3. Step 3: Cross multiply
    14,616.50x = 21,913.80 × 4,749.89
  4. Step 4: Simplify right side
    14,616.50x = 104,088,139.48
  5. Step 5: Solve for x
    x = 104,088,139.48/14,616.50
  6. Step 6: Final answer
    x = 7,121.28

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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.