Home / 13,758.89-18,989.37-11,098.04

Finding the Fourth Proportional to 13,758.89, 18,989.37 and 11,098.04

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Solution

The fourth proportional to 13,758.89, 18,989.37 and 11,098.04 is: 15,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.89 : 18,989.37 = 11,098.04 : x
  2. Step 2: Convert to fraction form
    13,758.89/18,989.37 = 11,098.04/x
  3. Step 3: Cross multiply
    13,758.89x = 18,989.37 × 11,098.04
  4. Step 4: Simplify right side
    13,758.89x = 210,744,692.89
  5. Step 5: Solve for x
    x = 210,744,692.89/13,758.89
  6. Step 6: Final answer
    x = 15,316.99

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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.