Home / 9,201.72-12,698.40-5,223.60

Finding the Fourth Proportional to 9,201.72, 12,698.40 and 5,223.60

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Solution

The fourth proportional to 9,201.72, 12,698.40 and 5,223.60 is: 7,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,201.72 : 12,698.40 = 5,223.60 : x
  2. Step 2: Convert to fraction form
    9,201.72/12,698.40 = 5,223.60/x
  3. Step 3: Cross multiply
    9,201.72x = 12,698.40 × 5,223.60
  4. Step 4: Simplify right side
    9,201.72x = 66,331,362.24
  5. Step 5: Solve for x
    x = 66,331,362.24/9,201.72
  6. Step 6: Final answer
    x = 7,208.58

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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.