Home / 13,518.82-20,278.29-8,868.28

Finding the Fourth Proportional to 13,518.82, 20,278.29 and 8,868.28

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Solution

The fourth proportional to 13,518.82, 20,278.29 and 8,868.28 is: 13,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.82 : 20,278.29 = 8,868.28 : x
  2. Step 2: Convert to fraction form
    13,518.82/20,278.29 = 8,868.28/x
  3. Step 3: Cross multiply
    13,518.82x = 20,278.29 × 8,868.28
  4. Step 4: Simplify right side
    13,518.82x = 179,833,553.64
  5. Step 5: Solve for x
    x = 179,833,553.64/13,518.82
  6. Step 6: Final answer
    x = 13,302.46

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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.