Home / 8,289.90-11,439.69-4,512.97

Finding the Fourth Proportional to 8,289.90, 11,439.69 and 4,512.97

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Solution

The fourth proportional to 8,289.90, 11,439.69 and 4,512.97 is: 6,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.90 : 11,439.69 = 4,512.97 : x
  2. Step 2: Convert to fraction form
    8,289.90/11,439.69 = 4,512.97/x
  3. Step 3: Cross multiply
    8,289.90x = 11,439.69 × 4,512.97
  4. Step 4: Simplify right side
    8,289.90x = 51,626,955.67
  5. Step 5: Solve for x
    x = 51,626,955.67/8,289.90
  6. Step 6: Final answer
    x = 6,227.69

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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.