Home / 18,729.33-28,084.31-6,880.06

Finding the Fourth Proportional to 18,729.33, 28,084.31 and 6,880.06

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Solution

The fourth proportional to 18,729.33, 28,084.31 and 6,880.06 is: 10,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.33 : 28,084.31 = 6,880.06 : x
  2. Step 2: Convert to fraction form
    18,729.33/28,084.31 = 6,880.06/x
  3. Step 3: Cross multiply
    18,729.33x = 28,084.31 × 6,880.06
  4. Step 4: Simplify right side
    18,729.33x = 193,221,703.46
  5. Step 5: Solve for x
    x = 193,221,703.46/18,729.33
  6. Step 6: Final answer
    x = 10,316.53

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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.