Home / 8,322.75-11,485.40-4,785.89

Finding the Fourth Proportional to 8,322.75, 11,485.40 and 4,785.89

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Solution

The fourth proportional to 8,322.75, 11,485.40 and 4,785.89 is: 6,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.75 : 11,485.40 = 4,785.89 : x
  2. Step 2: Convert to fraction form
    8,322.75/11,485.40 = 4,785.89/x
  3. Step 3: Cross multiply
    8,322.75x = 11,485.40 × 4,785.89
  4. Step 4: Simplify right side
    8,322.75x = 54,967,779.65
  5. Step 5: Solve for x
    x = 54,967,779.65/8,322.75
  6. Step 6: Final answer
    x = 6,604.52

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Half scale
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Double scale
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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.