Home / 13,719.03-18,932.63-7,751.58

Finding the Fourth Proportional to 13,719.03, 18,932.63 and 7,751.58

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Solution

The fourth proportional to 13,719.03, 18,932.63 and 7,751.58 is: 10,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.03 : 18,932.63 = 7,751.58 : x
  2. Step 2: Convert to fraction form
    13,719.03/18,932.63 = 7,751.58/x
  3. Step 3: Cross multiply
    13,719.03x = 18,932.63 × 7,751.58
  4. Step 4: Simplify right side
    13,719.03x = 146,757,796.06
  5. Step 5: Solve for x
    x = 146,757,796.06/13,719.03
  6. Step 6: Final answer
    x = 10,697.39

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1.5x scale

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.