Home / 13,645.36-20,463.68-5,323.35

Finding the Fourth Proportional to 13,645.36, 20,463.68 and 5,323.35

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Solution

The fourth proportional to 13,645.36, 20,463.68 and 5,323.35 is: 7,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.36 : 20,463.68 = 5,323.35 : x
  2. Step 2: Convert to fraction form
    13,645.36/20,463.68 = 5,323.35/x
  3. Step 3: Cross multiply
    13,645.36x = 20,463.68 × 5,323.35
  4. Step 4: Simplify right side
    13,645.36x = 108,935,344.24
  5. Step 5: Solve for x
    x = 108,935,344.24/13,645.36
  6. Step 6: Final answer
    x = 7,983.33

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1.5x scale

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.