Home / 13,973.10-20,960.64-5,208

Finding the Fourth Proportional to 13,973.10, 20,960.64 and 5,208

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Solution

The fourth proportional to 13,973.10, 20,960.64 and 5,208 is: 7,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.10 : 20,960.64 = 5,208 : x
  2. Step 2: Convert to fraction form
    13,973.10/20,960.64 = 5,208/x
  3. Step 3: Cross multiply
    13,973.10x = 20,960.64 × 5,208
  4. Step 4: Simplify right side
    13,973.10x = 109,163,013.12
  5. Step 5: Solve for x
    x = 109,163,013.12/13,973.10
  6. Step 6: Final answer
    x = 7,812.37

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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.