Home / 8,311.40-11,470.41-4,727.48

Finding the Fourth Proportional to 8,311.40, 11,470.41 and 4,727.48

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Solution

The fourth proportional to 8,311.40, 11,470.41 and 4,727.48 is: 6,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.40 : 11,470.41 = 4,727.48 : x
  2. Step 2: Convert to fraction form
    8,311.40/11,470.41 = 4,727.48/x
  3. Step 3: Cross multiply
    8,311.40x = 11,470.41 × 4,727.48
  4. Step 4: Simplify right side
    8,311.40x = 54,226,076.51
  5. Step 5: Solve for x
    x = 54,226,076.51/8,311.40
  6. Step 6: Final answer
    x = 6,524.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.