Home / 7,427.07-11,140.25-1,880.09

Finding the Fourth Proportional to 7,427.07, 11,140.25 and 1,880.09

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Solution

The fourth proportional to 7,427.07, 11,140.25 and 1,880.09 is: 2,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.07 : 11,140.25 = 1,880.09 : x
  2. Step 2: Convert to fraction form
    7,427.07/11,140.25 = 1,880.09/x
  3. Step 3: Cross multiply
    7,427.07x = 11,140.25 × 1,880.09
  4. Step 4: Simplify right side
    7,427.07x = 20,944,672.62
  5. Step 5: Solve for x
    x = 20,944,672.62/7,427.07
  6. Step 6: Final answer
    x = 2,820.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.