Home / 9,389.44-12,957.06-5,197.60

Finding the Fourth Proportional to 9,389.44, 12,957.06 and 5,197.60

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Solution

The fourth proportional to 9,389.44, 12,957.06 and 5,197.60 is: 7,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.44 : 12,957.06 = 5,197.60 : x
  2. Step 2: Convert to fraction form
    9,389.44/12,957.06 = 5,197.60/x
  3. Step 3: Cross multiply
    9,389.44x = 12,957.06 × 5,197.60
  4. Step 4: Simplify right side
    9,389.44x = 67,345,615.06
  5. Step 5: Solve for x
    x = 67,345,615.06/9,389.44
  6. Step 6: Final answer
    x = 7,172.48

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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.