Home / 10,493.28-15,739.40-3,918.96

Finding the Fourth Proportional to 10,493.28, 15,739.40 and 3,918.96

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Solution

The fourth proportional to 10,493.28, 15,739.40 and 3,918.96 is: 5,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,493.28 : 15,739.40 = 3,918.96 : x
  2. Step 2: Convert to fraction form
    10,493.28/15,739.40 = 3,918.96/x
  3. Step 3: Cross multiply
    10,493.28x = 15,739.40 × 3,918.96
  4. Step 4: Simplify right side
    10,493.28x = 61,682,079.02
  5. Step 5: Solve for x
    x = 61,682,079.02/10,493.28
  6. Step 6: Final answer
    x = 5,878.25

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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.