Home / 18,985.94-26,200.77-11,028.50

Finding the Fourth Proportional to 18,985.94, 26,200.77 and 11,028.50

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Solution

The fourth proportional to 18,985.94, 26,200.77 and 11,028.50 is: 15,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.94 : 26,200.77 = 11,028.50 : x
  2. Step 2: Convert to fraction form
    18,985.94/26,200.77 = 11,028.50/x
  3. Step 3: Cross multiply
    18,985.94x = 26,200.77 × 11,028.50
  4. Step 4: Simplify right side
    18,985.94x = 288,955,191.95
  5. Step 5: Solve for x
    x = 288,955,191.95/18,985.94
  6. Step 6: Final answer
    x = 15,219.43

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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.