Home / 7,855.45-10,840.59-4,318.65

Finding the Fourth Proportional to 7,855.45, 10,840.59 and 4,318.65

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Solution

The fourth proportional to 7,855.45, 10,840.59 and 4,318.65 is: 5,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.45 : 10,840.59 = 4,318.65 : x
  2. Step 2: Convert to fraction form
    7,855.45/10,840.59 = 4,318.65/x
  3. Step 3: Cross multiply
    7,855.45x = 10,840.59 × 4,318.65
  4. Step 4: Simplify right side
    7,855.45x = 46,816,714.00
  5. Step 5: Solve for x
    x = 46,816,714.00/7,855.45
  6. Step 6: Final answer
    x = 5,959.78

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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.