Home / 11,724.81-16,181.53-6,690.27

Finding the Fourth Proportional to 11,724.81, 16,181.53 and 6,690.27

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Solution

The fourth proportional to 11,724.81, 16,181.53 and 6,690.27 is: 9,233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.81 : 16,181.53 = 6,690.27 : x
  2. Step 2: Convert to fraction form
    11,724.81/16,181.53 = 6,690.27/x
  3. Step 3: Cross multiply
    11,724.81x = 16,181.53 × 6,690.27
  4. Step 4: Simplify right side
    11,724.81x = 108,258,804.71
  5. Step 5: Solve for x
    x = 108,258,804.71/11,724.81
  6. Step 6: Final answer
    x = 9,233.31

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1.5x scale

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.