Home / 13,190.66-19,795.46-5,186.64

Finding the Fourth Proportional to 13,190.66, 19,795.46 and 5,186.64

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Solution

The fourth proportional to 13,190.66, 19,795.46 and 5,186.64 is: 7,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.66 : 19,795.46 = 5,186.64 : x
  2. Step 2: Convert to fraction form
    13,190.66/19,795.46 = 5,186.64/x
  3. Step 3: Cross multiply
    13,190.66x = 19,795.46 × 5,186.64
  4. Step 4: Simplify right side
    13,190.66x = 102,671,898.72
  5. Step 5: Solve for x
    x = 102,671,898.72/13,190.66
  6. Step 6: Final answer
    x = 7,783.68

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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.