Home / 13,186.94-19,778.31-4,421.93

Finding the Fourth Proportional to 13,186.94, 19,778.31 and 4,421.93

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Solution

The fourth proportional to 13,186.94, 19,778.31 and 4,421.93 is: 6,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.94 : 19,778.31 = 4,421.93 : x
  2. Step 2: Convert to fraction form
    13,186.94/19,778.31 = 4,421.93/x
  3. Step 3: Cross multiply
    13,186.94x = 19,778.31 × 4,421.93
  4. Step 4: Simplify right side
    13,186.94x = 87,458,203.45
  5. Step 5: Solve for x
    x = 87,458,203.45/13,186.94
  6. Step 6: Final answer
    x = 6,632.19

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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.