Home / 13,425.00-18,522.77-8,394.36

Finding the Fourth Proportional to 13,425.00, 18,522.77 and 8,394.36

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Solution

The fourth proportional to 13,425.00, 18,522.77 and 8,394.36 is: 11,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.00 : 18,522.77 = 8,394.36 : x
  2. Step 2: Convert to fraction form
    13,425.00/18,522.77 = 8,394.36/x
  3. Step 3: Cross multiply
    13,425.00x = 18,522.77 × 8,394.36
  4. Step 4: Simplify right side
    13,425.00x = 155,486,727.95
  5. Step 5: Solve for x
    x = 155,486,727.95/13,425.00
  6. Step 6: Final answer
    x = 11,581.88

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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.