Home / 10,131.10-13,980.92-5,654.72

Finding the Fourth Proportional to 10,131.10, 13,980.92 and 5,654.72

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Solution

The fourth proportional to 10,131.10, 13,980.92 and 5,654.72 is: 7,803.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.10 : 13,980.92 = 5,654.72 : x
  2. Step 2: Convert to fraction form
    10,131.10/13,980.92 = 5,654.72/x
  3. Step 3: Cross multiply
    10,131.10x = 13,980.92 × 5,654.72
  4. Step 4: Simplify right side
    10,131.10x = 79,058,187.94
  5. Step 5: Solve for x
    x = 79,058,187.94/10,131.10
  6. Step 6: Final answer
    x = 7,803.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.