Home / 12,152.41-18,220.69-3,829.93

Finding the Fourth Proportional to 12,152.41, 18,220.69 and 3,829.93

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Solution

The fourth proportional to 12,152.41, 18,220.69 and 3,829.93 is: 5,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.41 : 18,220.69 = 3,829.93 : x
  2. Step 2: Convert to fraction form
    12,152.41/18,220.69 = 3,829.93/x
  3. Step 3: Cross multiply
    12,152.41x = 18,220.69 × 3,829.93
  4. Step 4: Simplify right side
    12,152.41x = 69,783,967.25
  5. Step 5: Solve for x
    x = 69,783,967.25/12,152.41
  6. Step 6: Final answer
    x = 5,742.40

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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.