Home / 13,275.36-19,914.66-5,489.64

Finding the Fourth Proportional to 13,275.36, 19,914.66 and 5,489.64

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Solution

The fourth proportional to 13,275.36, 19,914.66 and 5,489.64 is: 8,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.36 : 19,914.66 = 5,489.64 : x
  2. Step 2: Convert to fraction form
    13,275.36/19,914.66 = 5,489.64/x
  3. Step 3: Cross multiply
    13,275.36x = 19,914.66 × 5,489.64
  4. Step 4: Simplify right side
    13,275.36x = 109,324,314.12
  5. Step 5: Solve for x
    x = 109,324,314.12/13,275.36
  6. Step 6: Final answer
    x = 8,235.13

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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.