Home / 12,083.46-18,123.21-3,316.32

Finding the Fourth Proportional to 12,083.46, 18,123.21 and 3,316.32

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Solution

The fourth proportional to 12,083.46, 18,123.21 and 3,316.32 is: 4,973.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.46 : 18,123.21 = 3,316.32 : x
  2. Step 2: Convert to fraction form
    12,083.46/18,123.21 = 3,316.32/x
  3. Step 3: Cross multiply
    12,083.46x = 18,123.21 × 3,316.32
  4. Step 4: Simplify right side
    12,083.46x = 60,102,363.79
  5. Step 5: Solve for x
    x = 60,102,363.79/12,083.46
  6. Step 6: Final answer
    x = 4,973.94

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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.