Home / 9,099.08-12,556.64-5,120.11

Finding the Fourth Proportional to 9,099.08, 12,556.64 and 5,120.11

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Solution

The fourth proportional to 9,099.08, 12,556.64 and 5,120.11 is: 7,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.08 : 12,556.64 = 5,120.11 : x
  2. Step 2: Convert to fraction form
    9,099.08/12,556.64 = 5,120.11/x
  3. Step 3: Cross multiply
    9,099.08x = 12,556.64 × 5,120.11
  4. Step 4: Simplify right side
    9,099.08x = 64,291,359.44
  5. Step 5: Solve for x
    x = 64,291,359.44/9,099.08
  6. Step 6: Final answer
    x = 7,065.70

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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.