Home / 6,988.36-10,486.16-3,867.80

Finding the Fourth Proportional to 6,988.36, 10,486.16 and 3,867.80

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Solution

The fourth proportional to 6,988.36, 10,486.16 and 3,867.80 is: 5,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.36 : 10,486.16 = 3,867.80 : x
  2. Step 2: Convert to fraction form
    6,988.36/10,486.16 = 3,867.80/x
  3. Step 3: Cross multiply
    6,988.36x = 10,486.16 × 3,867.80
  4. Step 4: Simplify right side
    6,988.36x = 40,558,369.65
  5. Step 5: Solve for x
    x = 40,558,369.65/6,988.36
  6. Step 6: Final answer
    x = 5,803.70

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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.