Home / 13,863.24-20,788.56-8,964.36

Finding the Fourth Proportional to 13,863.24, 20,788.56 and 8,964.36

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Solution

The fourth proportional to 13,863.24, 20,788.56 and 8,964.36 is: 13,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.24 : 20,788.56 = 8,964.36 : x
  2. Step 2: Convert to fraction form
    13,863.24/20,788.56 = 8,964.36/x
  3. Step 3: Cross multiply
    13,863.24x = 20,788.56 × 8,964.36
  4. Step 4: Simplify right side
    13,863.24x = 186,356,135.72
  5. Step 5: Solve for x
    x = 186,356,135.72/13,863.24
  6. Step 6: Final answer
    x = 13,442.47

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1.5x scale

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.