Home / 9,410.54-12,986.46-5,161.51

Finding the Fourth Proportional to 9,410.54, 12,986.46 and 5,161.51

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Solution

The fourth proportional to 9,410.54, 12,986.46 and 5,161.51 is: 7,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,410.54 : 12,986.46 = 5,161.51 : x
  2. Step 2: Convert to fraction form
    9,410.54/12,986.46 = 5,161.51/x
  3. Step 3: Cross multiply
    9,410.54x = 12,986.46 × 5,161.51
  4. Step 4: Simplify right side
    9,410.54x = 67,029,749.81
  5. Step 5: Solve for x
    x = 67,029,749.81/9,410.54
  6. Step 6: Final answer
    x = 7,122.84

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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.