Home / 9,099.23-12,556.35-5,120.45

Finding the Fourth Proportional to 9,099.23, 12,556.35 and 5,120.45

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Solution

The fourth proportional to 9,099.23, 12,556.35 and 5,120.45 is: 7,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.23 : 12,556.35 = 5,120.45 : x
  2. Step 2: Convert to fraction form
    9,099.23/12,556.35 = 5,120.45/x
  3. Step 3: Cross multiply
    9,099.23x = 12,556.35 × 5,120.45
  4. Step 4: Simplify right side
    9,099.23x = 64,294,099.58
  5. Step 5: Solve for x
    x = 64,294,099.58/9,099.23
  6. Step 6: Final answer
    x = 7,065.89

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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.