Home / 13,332.45-19,998.63-3,972.60

Finding the Fourth Proportional to 13,332.45, 19,998.63 and 3,972.60

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Solution

The fourth proportional to 13,332.45, 19,998.63 and 3,972.60 is: 5,958.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.45 : 19,998.63 = 3,972.60 : x
  2. Step 2: Convert to fraction form
    13,332.45/19,998.63 = 3,972.60/x
  3. Step 3: Cross multiply
    13,332.45x = 19,998.63 × 3,972.60
  4. Step 4: Simplify right side
    13,332.45x = 79,446,557.54
  5. Step 5: Solve for x
    x = 79,446,557.54/13,332.45
  6. Step 6: Final answer
    x = 5,958.89

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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.