Home / 7,855.56-10,840.37-4,318.74

Finding the Fourth Proportional to 7,855.56, 10,840.37 and 4,318.74

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Solution

The fourth proportional to 7,855.56, 10,840.37 and 4,318.74 is: 5,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.56 : 10,840.37 = 4,318.74 : x
  2. Step 2: Convert to fraction form
    7,855.56/10,840.37 = 4,318.74/x
  3. Step 3: Cross multiply
    7,855.56x = 10,840.37 × 4,318.74
  4. Step 4: Simplify right side
    7,855.56x = 46,816,717.94
  5. Step 5: Solve for x
    x = 46,816,717.94/7,855.56
  6. Step 6: Final answer
    x = 5,959.69

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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.