Home / 11,943.60-16,482.90-6,638.42

Finding the Fourth Proportional to 11,943.60, 16,482.90 and 6,638.42

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Solution

The fourth proportional to 11,943.60, 16,482.90 and 6,638.42 is: 9,161.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.60 : 16,482.90 = 6,638.42 : x
  2. Step 2: Convert to fraction form
    11,943.60/16,482.90 = 6,638.42/x
  3. Step 3: Cross multiply
    11,943.60x = 16,482.90 × 6,638.42
  4. Step 4: Simplify right side
    11,943.60x = 109,420,413.02
  5. Step 5: Solve for x
    x = 109,420,413.02/11,943.60
  6. Step 6: Final answer
    x = 9,161.43

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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.