Home / 12,117.75-18,176.67-3,684.35

Finding the Fourth Proportional to 12,117.75, 18,176.67 and 3,684.35

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Solution

The fourth proportional to 12,117.75, 18,176.67 and 3,684.35 is: 5,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.75 : 18,176.67 = 3,684.35 : x
  2. Step 2: Convert to fraction form
    12,117.75/18,176.67 = 3,684.35/x
  3. Step 3: Cross multiply
    12,117.75x = 18,176.67 × 3,684.35
  4. Step 4: Simplify right side
    12,117.75x = 66,969,282.35
  5. Step 5: Solve for x
    x = 66,969,282.35/12,117.75
  6. Step 6: Final answer
    x = 5,526.55

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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.