Home / 13,316.75-19,975.13-4,082.75

Finding the Fourth Proportional to 13,316.75, 19,975.13 and 4,082.75

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Solution

The fourth proportional to 13,316.75, 19,975.13 and 4,082.75 is: 6,124.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.75 : 19,975.13 = 4,082.75 : x
  2. Step 2: Convert to fraction form
    13,316.75/19,975.13 = 4,082.75/x
  3. Step 3: Cross multiply
    13,316.75x = 19,975.13 × 4,082.75
  4. Step 4: Simplify right side
    13,316.75x = 81,553,462.01
  5. Step 5: Solve for x
    x = 81,553,462.01/13,316.75
  6. Step 6: Final answer
    x = 6,124.13

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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.