Home / 11,912.74-16,439.58-6,607.60

Finding the Fourth Proportional to 11,912.74, 16,439.58 and 6,607.60

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Solution

The fourth proportional to 11,912.74, 16,439.58 and 6,607.60 is: 9,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.74 : 16,439.58 = 6,607.60 : x
  2. Step 2: Convert to fraction form
    11,912.74/16,439.58 = 6,607.60/x
  3. Step 3: Cross multiply
    11,912.74x = 16,439.58 × 6,607.60
  4. Step 4: Simplify right side
    11,912.74x = 108,626,168.81
  5. Step 5: Solve for x
    x = 108,626,168.81/11,912.74
  6. Step 6: Final answer
    x = 9,118.49

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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.