Home / 12,133.60-18,200.36-3,368.50

Finding the Fourth Proportional to 12,133.60, 18,200.36 and 3,368.50

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Solution

The fourth proportional to 12,133.60, 18,200.36 and 3,368.50 is: 5,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.60 : 18,200.36 = 3,368.50 : x
  2. Step 2: Convert to fraction form
    12,133.60/18,200.36 = 3,368.50/x
  3. Step 3: Cross multiply
    12,133.60x = 18,200.36 × 3,368.50
  4. Step 4: Simplify right side
    12,133.60x = 61,307,912.66
  5. Step 5: Solve for x
    x = 61,307,912.66/12,133.60
  6. Step 6: Final answer
    x = 5,052.74

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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.