Home / 13,332.88-19,999.32-5,119.12

Finding the Fourth Proportional to 13,332.88, 19,999.32 and 5,119.12

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Solution

The fourth proportional to 13,332.88, 19,999.32 and 5,119.12 is: 7,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.88 : 19,999.32 = 5,119.12 : x
  2. Step 2: Convert to fraction form
    13,332.88/19,999.32 = 5,119.12/x
  3. Step 3: Cross multiply
    13,332.88x = 19,999.32 × 5,119.12
  4. Step 4: Simplify right side
    13,332.88x = 102,378,919.00
  5. Step 5: Solve for x
    x = 102,378,919.00/13,332.88
  6. Step 6: Final answer
    x = 7,678.68

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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.