Home / 13,284.28-18,347.48-9,028.24

Finding the Fourth Proportional to 13,284.28, 18,347.48 and 9,028.24

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Solution

The fourth proportional to 13,284.28, 18,347.48 and 9,028.24 is: 12,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.28 : 18,347.48 = 9,028.24 : x
  2. Step 2: Convert to fraction form
    13,284.28/18,347.48 = 9,028.24/x
  3. Step 3: Cross multiply
    13,284.28x = 18,347.48 × 9,028.24
  4. Step 4: Simplify right side
    13,284.28x = 165,645,452.84
  5. Step 5: Solve for x
    x = 165,645,452.84/13,284.28
  6. Step 6: Final answer
    x = 12,469.28

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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.