Home / 12,141.40-18,211.47-3,376.39

Finding the Fourth Proportional to 12,141.40, 18,211.47 and 3,376.39

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Solution

The fourth proportional to 12,141.40, 18,211.47 and 3,376.39 is: 5,064.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.40 : 18,211.47 = 3,376.39 : x
  2. Step 2: Convert to fraction form
    12,141.40/18,211.47 = 3,376.39/x
  3. Step 3: Cross multiply
    12,141.40x = 18,211.47 × 3,376.39
  4. Step 4: Simplify right side
    12,141.40x = 61,489,025.19
  5. Step 5: Solve for x
    x = 61,489,025.19/12,141.40
  6. Step 6: Final answer
    x = 5,064.41

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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.