Home / 13,187.28-19,782.24-4,869.48

Finding the Fourth Proportional to 13,187.28, 19,782.24 and 4,869.48

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Solution

The fourth proportional to 13,187.28, 19,782.24 and 4,869.48 is: 7,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.28 : 19,782.24 = 4,869.48 : x
  2. Step 2: Convert to fraction form
    13,187.28/19,782.24 = 4,869.48/x
  3. Step 3: Cross multiply
    13,187.28x = 19,782.24 × 4,869.48
  4. Step 4: Simplify right side
    13,187.28x = 96,329,222.04
  5. Step 5: Solve for x
    x = 96,329,222.04/13,187.28
  6. Step 6: Final answer
    x = 7,304.71

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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.