Home / 10,178.40-15,268.44-2,782.92

Finding the Fourth Proportional to 10,178.40, 15,268.44 and 2,782.92

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Solution

The fourth proportional to 10,178.40, 15,268.44 and 2,782.92 is: 4,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.40 : 15,268.44 = 2,782.92 : x
  2. Step 2: Convert to fraction form
    10,178.40/15,268.44 = 2,782.92/x
  3. Step 3: Cross multiply
    10,178.40x = 15,268.44 × 2,782.92
  4. Step 4: Simplify right side
    10,178.40x = 42,490,847.04
  5. Step 5: Solve for x
    x = 42,490,847.04/10,178.40
  6. Step 6: Final answer
    x = 4,174.61

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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.