Home / 11,323.75-15,628.64-6,289.60

Finding the Fourth Proportional to 11,323.75, 15,628.64 and 6,289.60

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Solution

The fourth proportional to 11,323.75, 15,628.64 and 6,289.60 is: 8,680.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.75 : 15,628.64 = 6,289.60 : x
  2. Step 2: Convert to fraction form
    11,323.75/15,628.64 = 6,289.60/x
  3. Step 3: Cross multiply
    11,323.75x = 15,628.64 × 6,289.60
  4. Step 4: Simplify right side
    11,323.75x = 98,297,894.14
  5. Step 5: Solve for x
    x = 98,297,894.14/11,323.75
  6. Step 6: Final answer
    x = 8,680.68

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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.