Home / 12,109.32-18,164.70-4,316.04

Finding the Fourth Proportional to 12,109.32, 18,164.70 and 4,316.04

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Solution

The fourth proportional to 12,109.32, 18,164.70 and 4,316.04 is: 6,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.32 : 18,164.70 = 4,316.04 : x
  2. Step 2: Convert to fraction form
    12,109.32/18,164.70 = 4,316.04/x
  3. Step 3: Cross multiply
    12,109.32x = 18,164.70 × 4,316.04
  4. Step 4: Simplify right side
    12,109.32x = 78,399,571.79
  5. Step 5: Solve for x
    x = 78,399,571.79/12,109.32
  6. Step 6: Final answer
    x = 6,474.32

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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.