Home / 13,186.92-19,780.34-3,326.98

Finding the Fourth Proportional to 13,186.92, 19,780.34 and 3,326.98

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Solution

The fourth proportional to 13,186.92, 19,780.34 and 3,326.98 is: 4,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.92 : 19,780.34 = 3,326.98 : x
  2. Step 2: Convert to fraction form
    13,186.92/19,780.34 = 3,326.98/x
  3. Step 3: Cross multiply
    13,186.92x = 19,780.34 × 3,326.98
  4. Step 4: Simplify right side
    13,186.92x = 65,808,795.57
  5. Step 5: Solve for x
    x = 65,808,795.57/13,186.92
  6. Step 6: Final answer
    x = 4,990.46

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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.