Home / 7,942.82-10,943.40-5,814.74

Finding the Fourth Proportional to 7,942.82, 10,943.40 and 5,814.74

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Solution

The fourth proportional to 7,942.82, 10,943.40 and 5,814.74 is: 8,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.82 : 10,943.40 = 5,814.74 : x
  2. Step 2: Convert to fraction form
    7,942.82/10,943.40 = 5,814.74/x
  3. Step 3: Cross multiply
    7,942.82x = 10,943.40 × 5,814.74
  4. Step 4: Simplify right side
    7,942.82x = 63,633,025.72
  5. Step 5: Solve for x
    x = 63,633,025.72/7,942.82
  6. Step 6: Final answer
    x = 8,011.39

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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.