Home / 13,074.08-18,044.64-7,772

Finding the Fourth Proportional to 13,074.08, 18,044.64 and 7,772

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Solution

The fourth proportional to 13,074.08, 18,044.64 and 7,772 is: 10,726.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.08 : 18,044.64 = 7,772 : x
  2. Step 2: Convert to fraction form
    13,074.08/18,044.64 = 7,772/x
  3. Step 3: Cross multiply
    13,074.08x = 18,044.64 × 7,772
  4. Step 4: Simplify right side
    13,074.08x = 140,242,942.08
  5. Step 5: Solve for x
    x = 140,242,942.08/13,074.08
  6. Step 6: Final answer
    x = 10,726.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.