Home / 17,683.96-26,509.46-12,139.92

Finding the Fourth Proportional to 17,683.96, 26,509.46 and 12,139.92

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Solution

The fourth proportional to 17,683.96, 26,509.46 and 12,139.92 is: 18,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,683.96 : 26,509.46 = 12,139.92 : x
  2. Step 2: Convert to fraction form
    17,683.96/26,509.46 = 12,139.92/x
  3. Step 3: Cross multiply
    17,683.96x = 26,509.46 × 12,139.92
  4. Step 4: Simplify right side
    17,683.96x = 321,822,723.64
  5. Step 5: Solve for x
    x = 321,822,723.64/17,683.96
  6. Step 6: Final answer
    x = 18,198.57

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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.