Home / 12,478.44-18,706.73-4,685.43

Finding the Fourth Proportional to 12,478.44, 18,706.73 and 4,685.43

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Solution

The fourth proportional to 12,478.44, 18,706.73 and 4,685.43 is: 7,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.44 : 18,706.73 = 4,685.43 : x
  2. Step 2: Convert to fraction form
    12,478.44/18,706.73 = 4,685.43/x
  3. Step 3: Cross multiply
    12,478.44x = 18,706.73 × 4,685.43
  4. Step 4: Simplify right side
    12,478.44x = 87,649,050.52
  5. Step 5: Solve for x
    x = 87,649,050.52/12,478.44
  6. Step 6: Final answer
    x = 7,024.04

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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.