Home / 9,099.08-12,556.58-5,120.19

Finding the Fourth Proportional to 9,099.08, 12,556.58 and 5,120.19

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Solution

The fourth proportional to 9,099.08, 12,556.58 and 5,120.19 is: 7,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.08 : 12,556.58 = 5,120.19 : x
  2. Step 2: Convert to fraction form
    9,099.08/12,556.58 = 5,120.19/x
  3. Step 3: Cross multiply
    9,099.08x = 12,556.58 × 5,120.19
  4. Step 4: Simplify right side
    9,099.08x = 64,292,075.35
  5. Step 5: Solve for x
    x = 64,292,075.35/9,099.08
  6. Step 6: Final answer
    x = 7,065.78

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Double scale
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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.