Home / 9,939.20-14,901.60-4,092.80

Finding the Fourth Proportional to 9,939.20, 14,901.60 and 4,092.80

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Solution

The fourth proportional to 9,939.20, 14,901.60 and 4,092.80 is: 6,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.20 : 14,901.60 = 4,092.80 : x
  2. Step 2: Convert to fraction form
    9,939.20/14,901.60 = 4,092.80/x
  3. Step 3: Cross multiply
    9,939.20x = 14,901.60 × 4,092.80
  4. Step 4: Simplify right side
    9,939.20x = 60,989,268.48
  5. Step 5: Solve for x
    x = 60,989,268.48/9,939.20
  6. Step 6: Final answer
    x = 6,136.24

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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.