Home / 7,118.33-9,823.90-3,975.12

Finding the Fourth Proportional to 7,118.33, 9,823.90 and 3,975.12

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Solution

The fourth proportional to 7,118.33, 9,823.90 and 3,975.12 is: 5,486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.33 : 9,823.90 = 3,975.12 : x
  2. Step 2: Convert to fraction form
    7,118.33/9,823.90 = 3,975.12/x
  3. Step 3: Cross multiply
    7,118.33x = 9,823.90 × 3,975.12
  4. Step 4: Simplify right side
    7,118.33x = 39,051,205.93
  5. Step 5: Solve for x
    x = 39,051,205.93/7,118.33
  6. Step 6: Final answer
    x = 5,486.01

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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.