Home / 10,391.44-14,340.56-5,675.92

Finding the Fourth Proportional to 10,391.44, 14,340.56 and 5,675.92

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Solution

The fourth proportional to 10,391.44, 14,340.56 and 5,675.92 is: 7,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.44 : 14,340.56 = 5,675.92 : x
  2. Step 2: Convert to fraction form
    10,391.44/14,340.56 = 5,675.92/x
  3. Step 3: Cross multiply
    10,391.44x = 14,340.56 × 5,675.92
  4. Step 4: Simplify right side
    10,391.44x = 81,395,871.32
  5. Step 5: Solve for x
    x = 81,395,871.32/10,391.44
  6. Step 6: Final answer
    x = 7,832.97

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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.