Home / 9,072.12-13,605.62-3,147.49

Finding the Fourth Proportional to 9,072.12, 13,605.62 and 3,147.49

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Solution

The fourth proportional to 9,072.12, 13,605.62 and 3,147.49 is: 4,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.12 : 13,605.62 = 3,147.49 : x
  2. Step 2: Convert to fraction form
    9,072.12/13,605.62 = 3,147.49/x
  3. Step 3: Cross multiply
    9,072.12x = 13,605.62 × 3,147.49
  4. Step 4: Simplify right side
    9,072.12x = 42,823,490.16
  5. Step 5: Solve for x
    x = 42,823,490.16/9,072.12
  6. Step 6: Final answer
    x = 4,720.34

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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.