Home / 9,311.06-12,867.69-7,629.81

Finding the Fourth Proportional to 9,311.06, 12,867.69 and 7,629.81

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Solution

The fourth proportional to 9,311.06, 12,867.69 and 7,629.81 is: 10,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.06 : 12,867.69 = 7,629.81 : x
  2. Step 2: Convert to fraction form
    9,311.06/12,867.69 = 7,629.81/x
  3. Step 3: Cross multiply
    9,311.06x = 12,867.69 × 7,629.81
  4. Step 4: Simplify right side
    9,311.06x = 98,178,029.84
  5. Step 5: Solve for x
    x = 98,178,029.84/9,311.06
  6. Step 6: Final answer
    x = 10,544.24

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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.