Home / 13,394.88-18,485.60-8,089.64

Finding the Fourth Proportional to 13,394.88, 18,485.60 and 8,089.64

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Solution

The fourth proportional to 13,394.88, 18,485.60 and 8,089.64 is: 11,164.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.88 : 18,485.60 = 8,089.64 : x
  2. Step 2: Convert to fraction form
    13,394.88/18,485.60 = 8,089.64/x
  3. Step 3: Cross multiply
    13,394.88x = 18,485.60 × 8,089.64
  4. Step 4: Simplify right side
    13,394.88x = 149,541,849.18
  5. Step 5: Solve for x
    x = 149,541,849.18/13,394.88
  6. Step 6: Final answer
    x = 11,164.11

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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.