Home / 7,946.86-11,912.53-3,785.74

Finding the Fourth Proportional to 7,946.86, 11,912.53 and 3,785.74

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Solution

The fourth proportional to 7,946.86, 11,912.53 and 3,785.74 is: 5,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.86 : 11,912.53 = 3,785.74 : x
  2. Step 2: Convert to fraction form
    7,946.86/11,912.53 = 3,785.74/x
  3. Step 3: Cross multiply
    7,946.86x = 11,912.53 × 3,785.74
  4. Step 4: Simplify right side
    7,946.86x = 45,097,741.32
  5. Step 5: Solve for x
    x = 45,097,741.32/7,946.86
  6. Step 6: Final answer
    x = 5,674.91

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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.