Home / 6,987.06-10,480.86-3,286.71

Finding the Fourth Proportional to 6,987.06, 10,480.86 and 3,286.71

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Solution

The fourth proportional to 6,987.06, 10,480.86 and 3,286.71 is: 4,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.06 : 10,480.86 = 3,286.71 : x
  2. Step 2: Convert to fraction form
    6,987.06/10,480.86 = 3,286.71/x
  3. Step 3: Cross multiply
    6,987.06x = 10,480.86 × 3,286.71
  4. Step 4: Simplify right side
    6,987.06x = 34,447,547.37
  5. Step 5: Solve for x
    x = 34,447,547.37/6,987.06
  6. Step 6: Final answer
    x = 4,930.19

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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.