Home / 13,719-18,933.03-7,750.52

Finding the Fourth Proportional to 13,719, 18,933.03 and 7,750.52

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Solution

The fourth proportional to 13,719, 18,933.03 and 7,750.52 is: 10,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719 : 18,933.03 = 7,750.52 : x
  2. Step 2: Convert to fraction form
    13,719/18,933.03 = 7,750.52/x
  3. Step 3: Cross multiply
    13,719x = 18,933.03 × 7,750.52
  4. Step 4: Simplify right side
    13,719x = 146,740,733.01
  5. Step 5: Solve for x
    x = 146,740,733.01/13,719
  6. Step 6: Final answer
    x = 10,696.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.