Home / 12,445.14-18,669.74-3,680.94

Finding the Fourth Proportional to 12,445.14, 18,669.74 and 3,680.94

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Solution

The fourth proportional to 12,445.14, 18,669.74 and 3,680.94 is: 5,522.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.14 : 18,669.74 = 3,680.94 : x
  2. Step 2: Convert to fraction form
    12,445.14/18,669.74 = 3,680.94/x
  3. Step 3: Cross multiply
    12,445.14x = 18,669.74 × 3,680.94
  4. Step 4: Simplify right side
    12,445.14x = 68,722,192.76
  5. Step 5: Solve for x
    x = 68,722,192.76/12,445.14
  6. Step 6: Final answer
    x = 5,522.01

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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.