Home / 9,190.89-12,682.49-5,212.35

Finding the Fourth Proportional to 9,190.89, 12,682.49 and 5,212.35

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Solution

The fourth proportional to 9,190.89, 12,682.49 and 5,212.35 is: 7,192.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.89 : 12,682.49 = 5,212.35 : x
  2. Step 2: Convert to fraction form
    9,190.89/12,682.49 = 5,212.35/x
  3. Step 3: Cross multiply
    9,190.89x = 12,682.49 × 5,212.35
  4. Step 4: Simplify right side
    9,190.89x = 66,105,550.69
  5. Step 5: Solve for x
    x = 66,105,550.69/9,190.89
  6. Step 6: Final answer
    x = 7,192.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.