Home / 12,117.70-18,164.40-5,548.60

Finding the Fourth Proportional to 12,117.70, 18,164.40 and 5,548.60

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Solution

The fourth proportional to 12,117.70, 18,164.40 and 5,548.60 is: 8,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.70 : 18,164.40 = 5,548.60 : x
  2. Step 2: Convert to fraction form
    12,117.70/18,164.40 = 5,548.60/x
  3. Step 3: Cross multiply
    12,117.70x = 18,164.40 × 5,548.60
  4. Step 4: Simplify right side
    12,117.70x = 100,786,989.84
  5. Step 5: Solve for x
    x = 100,786,989.84/12,117.70
  6. Step 6: Final answer
    x = 8,317.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.