Home / 7,921.96-10,932.23-4,385.09

Finding the Fourth Proportional to 7,921.96, 10,932.23 and 4,385.09

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Solution

The fourth proportional to 7,921.96, 10,932.23 and 4,385.09 is: 6,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.96 : 10,932.23 = 4,385.09 : x
  2. Step 2: Convert to fraction form
    7,921.96/10,932.23 = 4,385.09/x
  3. Step 3: Cross multiply
    7,921.96x = 10,932.23 × 4,385.09
  4. Step 4: Simplify right side
    7,921.96x = 47,938,850.74
  5. Step 5: Solve for x
    x = 47,938,850.74/7,921.96
  6. Step 6: Final answer
    x = 6,051.39

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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.