Home / 11,683.29-16,122.72-6,647.40

Finding the Fourth Proportional to 11,683.29, 16,122.72 and 6,647.40

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Solution

The fourth proportional to 11,683.29, 16,122.72 and 6,647.40 is: 9,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.29 : 16,122.72 = 6,647.40 : x
  2. Step 2: Convert to fraction form
    11,683.29/16,122.72 = 6,647.40/x
  3. Step 3: Cross multiply
    11,683.29x = 16,122.72 × 6,647.40
  4. Step 4: Simplify right side
    11,683.29x = 107,174,088.31
  5. Step 5: Solve for x
    x = 107,174,088.31/11,683.29
  6. Step 6: Final answer
    x = 9,173.28

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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.