Home / 9,939.80-14,918.10-4,100.60

Finding the Fourth Proportional to 9,939.80, 14,918.10 and 4,100.60

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Solution

The fourth proportional to 9,939.80, 14,918.10 and 4,100.60 is: 6,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.80 : 14,918.10 = 4,100.60 : x
  2. Step 2: Convert to fraction form
    9,939.80/14,918.10 = 4,100.60/x
  3. Step 3: Cross multiply
    9,939.80x = 14,918.10 × 4,100.60
  4. Step 4: Simplify right side
    9,939.80x = 61,173,160.86
  5. Step 5: Solve for x
    x = 61,173,160.86/9,939.80
  6. Step 6: Final answer
    x = 6,154.37

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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.