Home / 8,986.72-13,477.44-3,142.24

Finding the Fourth Proportional to 8,986.72, 13,477.44 and 3,142.24

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Solution

The fourth proportional to 8,986.72, 13,477.44 and 3,142.24 is: 4,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.72 : 13,477.44 = 3,142.24 : x
  2. Step 2: Convert to fraction form
    8,986.72/13,477.44 = 3,142.24/x
  3. Step 3: Cross multiply
    8,986.72x = 13,477.44 × 3,142.24
  4. Step 4: Simplify right side
    8,986.72x = 42,349,351.07
  5. Step 5: Solve for x
    x = 42,349,351.07/8,986.72
  6. Step 6: Final answer
    x = 4,712.44

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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.