Home / 13,824.81-19,078.34-7,537.19

Finding the Fourth Proportional to 13,824.81, 19,078.34 and 7,537.19

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Solution

The fourth proportional to 13,824.81, 19,078.34 and 7,537.19 is: 10,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.81 : 19,078.34 = 7,537.19 : x
  2. Step 2: Convert to fraction form
    13,824.81/19,078.34 = 7,537.19/x
  3. Step 3: Cross multiply
    13,824.81x = 19,078.34 × 7,537.19
  4. Step 4: Simplify right side
    13,824.81x = 143,796,940.39
  5. Step 5: Solve for x
    x = 143,796,940.39/13,824.81
  6. Step 6: Final answer
    x = 10,401.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.