Home / 13,606.07-20,415.38-6,212.79

Finding the Fourth Proportional to 13,606.07, 20,415.38 and 6,212.79

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Solution

The fourth proportional to 13,606.07, 20,415.38 and 6,212.79 is: 9,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.07 : 20,415.38 = 6,212.79 : x
  2. Step 2: Convert to fraction form
    13,606.07/20,415.38 = 6,212.79/x
  3. Step 3: Cross multiply
    13,606.07x = 20,415.38 × 6,212.79
  4. Step 4: Simplify right side
    13,606.07x = 126,836,437.65
  5. Step 5: Solve for x
    x = 126,836,437.65/13,606.07
  6. Step 6: Final answer
    x = 9,322.05

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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.