Home / 9,628.78-13,283.99-5,648.44

Finding the Fourth Proportional to 9,628.78, 13,283.99 and 5,648.44

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Solution

The fourth proportional to 9,628.78, 13,283.99 and 5,648.44 is: 7,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.78 : 13,283.99 = 5,648.44 : x
  2. Step 2: Convert to fraction form
    9,628.78/13,283.99 = 5,648.44/x
  3. Step 3: Cross multiply
    9,628.78x = 13,283.99 × 5,648.44
  4. Step 4: Simplify right side
    9,628.78x = 75,033,820.48
  5. Step 5: Solve for x
    x = 75,033,820.48/9,628.78
  6. Step 6: Final answer
    x = 7,792.66

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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.