Home / 11,683.15-16,123.13-6,647.25

Finding the Fourth Proportional to 11,683.15, 16,123.13 and 6,647.25

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Solution

The fourth proportional to 11,683.15, 16,123.13 and 6,647.25 is: 9,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.15 : 16,123.13 = 6,647.25 : x
  2. Step 2: Convert to fraction form
    11,683.15/16,123.13 = 6,647.25/x
  3. Step 3: Cross multiply
    11,683.15x = 16,123.13 × 6,647.25
  4. Step 4: Simplify right side
    11,683.15x = 107,174,475.89
  5. Step 5: Solve for x
    x = 107,174,475.89/11,683.15
  6. Step 6: Final answer
    x = 9,173.42

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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.