Home / 8,986.32-13,485.48-3,142.93

Finding the Fourth Proportional to 8,986.32, 13,485.48 and 3,142.93

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Solution

The fourth proportional to 8,986.32, 13,485.48 and 3,142.93 is: 4,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.32 : 13,485.48 = 3,142.93 : x
  2. Step 2: Convert to fraction form
    8,986.32/13,485.48 = 3,142.93/x
  3. Step 3: Cross multiply
    8,986.32x = 13,485.48 × 3,142.93
  4. Step 4: Simplify right side
    8,986.32x = 42,383,874.16
  5. Step 5: Solve for x
    x = 42,383,874.16/8,986.32
  6. Step 6: Final answer
    x = 4,716.49

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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.