Home / 13,798.08-18,991.80-11,534.94

Finding the Fourth Proportional to 13,798.08, 18,991.80 and 11,534.94

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Solution

The fourth proportional to 13,798.08, 18,991.80 and 11,534.94 is: 15,876.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.08 : 18,991.80 = 11,534.94 : x
  2. Step 2: Convert to fraction form
    13,798.08/18,991.80 = 11,534.94/x
  3. Step 3: Cross multiply
    13,798.08x = 18,991.80 × 11,534.94
  4. Step 4: Simplify right side
    13,798.08x = 219,069,273.49
  5. Step 5: Solve for x
    x = 219,069,273.49/13,798.08
  6. Step 6: Final answer
    x = 15,876.79

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1.5x scale

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.