Home / 7,809.42-11,700.36-4,102.86

Finding the Fourth Proportional to 7,809.42, 11,700.36 and 4,102.86

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Solution

The fourth proportional to 7,809.42, 11,700.36 and 4,102.86 is: 6,147.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.42 : 11,700.36 = 4,102.86 : x
  2. Step 2: Convert to fraction form
    7,809.42/11,700.36 = 4,102.86/x
  3. Step 3: Cross multiply
    7,809.42x = 11,700.36 × 4,102.86
  4. Step 4: Simplify right side
    7,809.42x = 48,004,939.03
  5. Step 5: Solve for x
    x = 48,004,939.03/7,809.42
  6. Step 6: Final answer
    x = 6,147.06

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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.