Home / 11,709.86-17,558.31-4,782.74

Finding the Fourth Proportional to 11,709.86, 17,558.31 and 4,782.74

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Solution

The fourth proportional to 11,709.86, 17,558.31 and 4,782.74 is: 7,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.86 : 17,558.31 = 4,782.74 : x
  2. Step 2: Convert to fraction form
    11,709.86/17,558.31 = 4,782.74/x
  3. Step 3: Cross multiply
    11,709.86x = 17,558.31 × 4,782.74
  4. Step 4: Simplify right side
    11,709.86x = 83,976,831.57
  5. Step 5: Solve for x
    x = 83,976,831.57/11,709.86
  6. Step 6: Final answer
    x = 7,171.46

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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.