Home / 13,336.39-18,396.30-8,623.45

Finding the Fourth Proportional to 13,336.39, 18,396.30 and 8,623.45

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Solution

The fourth proportional to 13,336.39, 18,396.30 and 8,623.45 is: 11,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.39 : 18,396.30 = 8,623.45 : x
  2. Step 2: Convert to fraction form
    13,336.39/18,396.30 = 8,623.45/x
  3. Step 3: Cross multiply
    13,336.39x = 18,396.30 × 8,623.45
  4. Step 4: Simplify right side
    13,336.39x = 158,639,573.24
  5. Step 5: Solve for x
    x = 158,639,573.24/13,336.39
  6. Step 6: Final answer
    x = 11,895.24

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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.