Home / 18,588.12-25,639.44-11,028.84

Finding the Fourth Proportional to 18,588.12, 25,639.44 and 11,028.84

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Solution

The fourth proportional to 18,588.12, 25,639.44 and 11,028.84 is: 15,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.12 : 25,639.44 = 11,028.84 : x
  2. Step 2: Convert to fraction form
    18,588.12/25,639.44 = 11,028.84/x
  3. Step 3: Cross multiply
    18,588.12x = 25,639.44 × 11,028.84
  4. Step 4: Simplify right side
    18,588.12x = 282,773,281.45
  5. Step 5: Solve for x
    x = 282,773,281.45/18,588.12
  6. Step 6: Final answer
    x = 15,212.58

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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.