Home / 10,429.44-15,640.32-4,273.92

Finding the Fourth Proportional to 10,429.44, 15,640.32 and 4,273.92

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Solution

The fourth proportional to 10,429.44, 15,640.32 and 4,273.92 is: 6,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.44 : 15,640.32 = 4,273.92 : x
  2. Step 2: Convert to fraction form
    10,429.44/15,640.32 = 4,273.92/x
  3. Step 3: Cross multiply
    10,429.44x = 15,640.32 × 4,273.92
  4. Step 4: Simplify right side
    10,429.44x = 66,845,476.45
  5. Step 5: Solve for x
    x = 66,845,476.45/10,429.44
  6. Step 6: Final answer
    x = 6,409.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.