Home / 13,212.69-19,792.62-7,944.81

Finding the Fourth Proportional to 13,212.69, 19,792.62 and 7,944.81

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Solution

The fourth proportional to 13,212.69, 19,792.62 and 7,944.81 is: 11,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.69 : 19,792.62 = 7,944.81 : x
  2. Step 2: Convert to fraction form
    13,212.69/19,792.62 = 7,944.81/x
  3. Step 3: Cross multiply
    13,212.69x = 19,792.62 × 7,944.81
  4. Step 4: Simplify right side
    13,212.69x = 157,248,605.30
  5. Step 5: Solve for x
    x = 157,248,605.30/13,212.69
  6. Step 6: Final answer
    x = 11,901.34

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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.