Home / 7,845.84-10,826.31-4,488.78

Finding the Fourth Proportional to 7,845.84, 10,826.31 and 4,488.78

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Solution

The fourth proportional to 7,845.84, 10,826.31 and 4,488.78 is: 6,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.84 : 10,826.31 = 4,488.78 : x
  2. Step 2: Convert to fraction form
    7,845.84/10,826.31 = 4,488.78/x
  3. Step 3: Cross multiply
    7,845.84x = 10,826.31 × 4,488.78
  4. Step 4: Simplify right side
    7,845.84x = 48,596,923.80
  5. Step 5: Solve for x
    x = 48,596,923.80/7,845.84
  6. Step 6: Final answer
    x = 6,193.97

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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.