Home / 13,336.89-18,396.99-8,623.95

Finding the Fourth Proportional to 13,336.89, 18,396.99 and 8,623.95

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Solution

The fourth proportional to 13,336.89, 18,396.99 and 8,623.95 is: 11,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.89 : 18,396.99 = 8,623.95 : x
  2. Step 2: Convert to fraction form
    13,336.89/18,396.99 = 8,623.95/x
  3. Step 3: Cross multiply
    13,336.89x = 18,396.99 × 8,623.95
  4. Step 4: Simplify right side
    13,336.89x = 158,654,721.91
  5. Step 5: Solve for x
    x = 158,654,721.91/13,336.89
  6. Step 6: Final answer
    x = 11,895.93

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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.