Home / 18,436.15-25,443.84-11,270.26

Finding the Fourth Proportional to 18,436.15, 25,443.84 and 11,270.26

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Solution

The fourth proportional to 18,436.15, 25,443.84 and 11,270.26 is: 15,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.15 : 25,443.84 = 11,270.26 : x
  2. Step 2: Convert to fraction form
    18,436.15/25,443.84 = 11,270.26/x
  3. Step 3: Cross multiply
    18,436.15x = 25,443.84 × 11,270.26
  4. Step 4: Simplify right side
    18,436.15x = 286,758,692.20
  5. Step 5: Solve for x
    x = 286,758,692.20/18,436.15
  6. Step 6: Final answer
    x = 15,554.15

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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.