Home / 7,828.72-10,800.94-4,641.36

Finding the Fourth Proportional to 7,828.72, 10,800.94 and 4,641.36

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Solution

The fourth proportional to 7,828.72, 10,800.94 and 4,641.36 is: 6,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.72 : 10,800.94 = 4,641.36 : x
  2. Step 2: Convert to fraction form
    7,828.72/10,800.94 = 4,641.36/x
  3. Step 3: Cross multiply
    7,828.72x = 10,800.94 × 4,641.36
  4. Step 4: Simplify right side
    7,828.72x = 50,131,050.88
  5. Step 5: Solve for x
    x = 50,131,050.88/7,828.72
  6. Step 6: Final answer
    x = 6,403.48

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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.