Home / 13,322.88-19,979.28-4,556.16

Finding the Fourth Proportional to 13,322.88, 19,979.28 and 4,556.16

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Solution

The fourth proportional to 13,322.88, 19,979.28 and 4,556.16 is: 6,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.88 : 19,979.28 = 4,556.16 : x
  2. Step 2: Convert to fraction form
    13,322.88/19,979.28 = 4,556.16/x
  3. Step 3: Cross multiply
    13,322.88x = 19,979.28 × 4,556.16
  4. Step 4: Simplify right side
    13,322.88x = 91,028,796.36
  5. Step 5: Solve for x
    x = 91,028,796.36/13,322.88
  6. Step 6: Final answer
    x = 6,832.52

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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.