Home / 18,719.53-28,072.14-6,237.16

Finding the Fourth Proportional to 18,719.53, 28,072.14 and 6,237.16

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Solution

The fourth proportional to 18,719.53, 28,072.14 and 6,237.16 is: 9,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.53 : 28,072.14 = 6,237.16 : x
  2. Step 2: Convert to fraction form
    18,719.53/28,072.14 = 6,237.16/x
  3. Step 3: Cross multiply
    18,719.53x = 28,072.14 × 6,237.16
  4. Step 4: Simplify right side
    18,719.53x = 175,090,428.72
  5. Step 5: Solve for x
    x = 175,090,428.72/18,719.53
  6. Step 6: Final answer
    x = 9,353.36

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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.