Home / 7,018.44-9,685.61-3,874.69

Finding the Fourth Proportional to 7,018.44, 9,685.61 and 3,874.69

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Solution

The fourth proportional to 7,018.44, 9,685.61 and 3,874.69 is: 5,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.44 : 9,685.61 = 3,874.69 : x
  2. Step 2: Convert to fraction form
    7,018.44/9,685.61 = 3,874.69/x
  3. Step 3: Cross multiply
    7,018.44x = 9,685.61 × 3,874.69
  4. Step 4: Simplify right side
    7,018.44x = 37,528,736.21
  5. Step 5: Solve for x
    x = 37,528,736.21/7,018.44
  6. Step 6: Final answer
    x = 5,347.16

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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.