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Finding the Fourth Proportional to 8,930, 12,323.96 and 5,153.84

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Solution

The fourth proportional to 8,930, 12,323.96 and 5,153.84 is: 7,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930 : 12,323.96 = 5,153.84 : x
  2. Step 2: Convert to fraction form
    8,930/12,323.96 = 5,153.84/x
  3. Step 3: Cross multiply
    8,930x = 12,323.96 × 5,153.84
  4. Step 4: Simplify right side
    8,930x = 63,515,718.01
  5. Step 5: Solve for x
    x = 63,515,718.01/8,930
  6. Step 6: Final answer
    x = 7,112.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.