Home / 9,099.56-12,556.04-5,120.60

Finding the Fourth Proportional to 9,099.56, 12,556.04 and 5,120.60

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Solution

The fourth proportional to 9,099.56, 12,556.04 and 5,120.60 is: 7,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.56 : 12,556.04 = 5,120.60 : x
  2. Step 2: Convert to fraction form
    9,099.56/12,556.04 = 5,120.60/x
  3. Step 3: Cross multiply
    9,099.56x = 12,556.04 × 5,120.60
  4. Step 4: Simplify right side
    9,099.56x = 64,294,370.04
  5. Step 5: Solve for x
    x = 64,294,370.04/9,099.56
  6. Step 6: Final answer
    x = 7,065.66

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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.