Home / 13,351.03-18,425.88-8,509.25

Finding the Fourth Proportional to 13,351.03, 18,425.88 and 8,509.25

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Solution

The fourth proportional to 13,351.03, 18,425.88 and 8,509.25 is: 11,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.03 : 18,425.88 = 8,509.25 : x
  2. Step 2: Convert to fraction form
    13,351.03/18,425.88 = 8,509.25/x
  3. Step 3: Cross multiply
    13,351.03x = 18,425.88 × 8,509.25
  4. Step 4: Simplify right side
    13,351.03x = 156,790,465.45
  5. Step 5: Solve for x
    x = 156,790,465.45/13,351.03
  6. Step 6: Final answer
    x = 11,743.70

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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.