Home / 9,427.28-14,142.48-3,187.88

Finding the Fourth Proportional to 9,427.28, 14,142.48 and 3,187.88

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Solution

The fourth proportional to 9,427.28, 14,142.48 and 3,187.88 is: 4,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.28 : 14,142.48 = 3,187.88 : x
  2. Step 2: Convert to fraction form
    9,427.28/14,142.48 = 3,187.88/x
  3. Step 3: Cross multiply
    9,427.28x = 14,142.48 × 3,187.88
  4. Step 4: Simplify right side
    9,427.28x = 45,084,529.14
  5. Step 5: Solve for x
    x = 45,084,529.14/9,427.28
  6. Step 6: Final answer
    x = 4,782.35

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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.