Home / 7,814.32-11,728.48-5,707.84

Finding the Fourth Proportional to 7,814.32, 11,728.48 and 5,707.84

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Solution

The fourth proportional to 7,814.32, 11,728.48 and 5,707.84 is: 8,566.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.32 : 11,728.48 = 5,707.84 : x
  2. Step 2: Convert to fraction form
    7,814.32/11,728.48 = 5,707.84/x
  3. Step 3: Cross multiply
    7,814.32x = 11,728.48 × 5,707.84
  4. Step 4: Simplify right side
    7,814.32x = 66,944,287.28
  5. Step 5: Solve for x
    x = 66,944,287.28/7,814.32
  6. Step 6: Final answer
    x = 8,566.87

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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.