Home / 8,986.41-13,485.69-3,143.07

Finding the Fourth Proportional to 8,986.41, 13,485.69 and 3,143.07

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Solution

The fourth proportional to 8,986.41, 13,485.69 and 3,143.07 is: 4,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.41 : 13,485.69 = 3,143.07 : x
  2. Step 2: Convert to fraction form
    8,986.41/13,485.69 = 3,143.07/x
  3. Step 3: Cross multiply
    8,986.41x = 13,485.69 × 3,143.07
  4. Step 4: Simplify right side
    8,986.41x = 42,386,467.67
  5. Step 5: Solve for x
    x = 42,386,467.67/8,986.41
  6. Step 6: Final answer
    x = 4,716.73

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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.