Home / 8,231.16-11,364.30-7,345.44

Finding the Fourth Proportional to 8,231.16, 11,364.30 and 7,345.44

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Solution

The fourth proportional to 8,231.16, 11,364.30 and 7,345.44 is: 10,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.16 : 11,364.30 = 7,345.44 : x
  2. Step 2: Convert to fraction form
    8,231.16/11,364.30 = 7,345.44/x
  3. Step 3: Cross multiply
    8,231.16x = 11,364.30 × 7,345.44
  4. Step 4: Simplify right side
    8,231.16x = 83,475,783.79
  5. Step 5: Solve for x
    x = 83,475,783.79/8,231.16
  6. Step 6: Final answer
    x = 10,141.44

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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.