Home / 7,923.75-11,897.30-4,420.60

Finding the Fourth Proportional to 7,923.75, 11,897.30 and 4,420.60

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Solution

The fourth proportional to 7,923.75, 11,897.30 and 4,420.60 is: 6,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.75 : 11,897.30 = 4,420.60 : x
  2. Step 2: Convert to fraction form
    7,923.75/11,897.30 = 4,420.60/x
  3. Step 3: Cross multiply
    7,923.75x = 11,897.30 × 4,420.60
  4. Step 4: Simplify right side
    7,923.75x = 52,593,204.38
  5. Step 5: Solve for x
    x = 52,593,204.38/7,923.75
  6. Step 6: Final answer
    x = 6,637.41

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1.5x scale

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.