Home / 11,989.86-16,546.04-6,685.02

Finding the Fourth Proportional to 11,989.86, 16,546.04 and 6,685.02

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Solution

The fourth proportional to 11,989.86, 16,546.04 and 6,685.02 is: 9,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.86 : 16,546.04 = 6,685.02 : x
  2. Step 2: Convert to fraction form
    11,989.86/16,546.04 = 6,685.02/x
  3. Step 3: Cross multiply
    11,989.86x = 16,546.04 × 6,685.02
  4. Step 4: Simplify right side
    11,989.86x = 110,610,608.32
  5. Step 5: Solve for x
    x = 110,610,608.32/11,989.86
  6. Step 6: Final answer
    x = 9,225.35

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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.