Home / 7,786.40-10,742.48-4,993.44

Finding the Fourth Proportional to 7,786.40, 10,742.48 and 4,993.44

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Solution

The fourth proportional to 7,786.40, 10,742.48 and 4,993.44 is: 6,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.40 : 10,742.48 = 4,993.44 : x
  2. Step 2: Convert to fraction form
    7,786.40/10,742.48 = 4,993.44/x
  3. Step 3: Cross multiply
    7,786.40x = 10,742.48 × 4,993.44
  4. Step 4: Simplify right side
    7,786.40x = 53,641,929.33
  5. Step 5: Solve for x
    x = 53,641,929.33/7,786.40
  6. Step 6: Final answer
    x = 6,889.18

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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.