Home / 11,683.12-16,122.19-6,647.76

Finding the Fourth Proportional to 11,683.12, 16,122.19 and 6,647.76

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Solution

The fourth proportional to 11,683.12, 16,122.19 and 6,647.76 is: 9,173.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.12 : 16,122.19 = 6,647.76 : x
  2. Step 2: Convert to fraction form
    11,683.12/16,122.19 = 6,647.76/x
  3. Step 3: Cross multiply
    11,683.12x = 16,122.19 × 6,647.76
  4. Step 4: Simplify right side
    11,683.12x = 107,176,449.79
  5. Step 5: Solve for x
    x = 107,176,449.79/11,683.12
  6. Step 6: Final answer
    x = 9,173.62

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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.