Home / 8,323.81-11,485.49-4,920.35

Finding the Fourth Proportional to 8,323.81, 11,485.49 and 4,920.35

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Solution

The fourth proportional to 8,323.81, 11,485.49 and 4,920.35 is: 6,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.81 : 11,485.49 = 4,920.35 : x
  2. Step 2: Convert to fraction form
    8,323.81/11,485.49 = 4,920.35/x
  3. Step 3: Cross multiply
    8,323.81x = 11,485.49 × 4,920.35
  4. Step 4: Simplify right side
    8,323.81x = 56,512,548.69
  5. Step 5: Solve for x
    x = 56,512,548.69/8,323.81
  6. Step 6: Final answer
    x = 6,789.27

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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.