Home / 9,983.90-13,778.16-5,735.54

Finding the Fourth Proportional to 9,983.90, 13,778.16 and 5,735.54

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Solution

The fourth proportional to 9,983.90, 13,778.16 and 5,735.54 is: 7,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.90 : 13,778.16 = 5,735.54 : x
  2. Step 2: Convert to fraction form
    9,983.90/13,778.16 = 5,735.54/x
  3. Step 3: Cross multiply
    9,983.90x = 13,778.16 × 5,735.54
  4. Step 4: Simplify right side
    9,983.90x = 79,025,187.81
  5. Step 5: Solve for x
    x = 79,025,187.81/9,983.90
  6. Step 6: Final answer
    x = 7,915.26

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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.