Home / 9,939.60-14,911.20-4,096.80

Finding the Fourth Proportional to 9,939.60, 14,911.20 and 4,096.80

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Solution

The fourth proportional to 9,939.60, 14,911.20 and 4,096.80 is: 6,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.60 : 14,911.20 = 4,096.80 : x
  2. Step 2: Convert to fraction form
    9,939.60/14,911.20 = 4,096.80/x
  3. Step 3: Cross multiply
    9,939.60x = 14,911.20 × 4,096.80
  4. Step 4: Simplify right side
    9,939.60x = 61,088,204.16
  5. Step 5: Solve for x
    x = 61,088,204.16/9,939.60
  6. Step 6: Final answer
    x = 6,145.94

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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.