Home / 11,406.63-15,741.27-6,690.99

Finding the Fourth Proportional to 11,406.63, 15,741.27 and 6,690.99

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Solution

The fourth proportional to 11,406.63, 15,741.27 and 6,690.99 is: 9,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.63 : 15,741.27 = 6,690.99 : x
  2. Step 2: Convert to fraction form
    11,406.63/15,741.27 = 6,690.99/x
  3. Step 3: Cross multiply
    11,406.63x = 15,741.27 × 6,690.99
  4. Step 4: Simplify right side
    11,406.63x = 105,324,680.16
  5. Step 5: Solve for x
    x = 105,324,680.16/11,406.63
  6. Step 6: Final answer
    x = 9,233.64

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Why These Related Problems?

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