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Finding the Fourth Proportional to 9,930.48, 14,897.64 and 3,774

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Solution

The fourth proportional to 9,930.48, 14,897.64 and 3,774 is: 5,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.48 : 14,897.64 = 3,774 : x
  2. Step 2: Convert to fraction form
    9,930.48/14,897.64 = 3,774/x
  3. Step 3: Cross multiply
    9,930.48x = 14,897.64 × 3,774
  4. Step 4: Simplify right side
    9,930.48x = 56,223,693.36
  5. Step 5: Solve for x
    x = 56,223,693.36/9,930.48
  6. Step 6: Final answer
    x = 5,661.73

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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.