Home / 18,729.18-28,096.53-7,045.14

Finding the Fourth Proportional to 18,729.18, 28,096.53 and 7,045.14

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Solution

The fourth proportional to 18,729.18, 28,096.53 and 7,045.14 is: 10,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.18 : 28,096.53 = 7,045.14 : x
  2. Step 2: Convert to fraction form
    18,729.18/28,096.53 = 7,045.14/x
  3. Step 3: Cross multiply
    18,729.18x = 28,096.53 × 7,045.14
  4. Step 4: Simplify right side
    18,729.18x = 197,943,987.36
  5. Step 5: Solve for x
    x = 197,943,987.36/18,729.18
  6. Step 6: Final answer
    x = 10,568.75

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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.