Home / 18,965.53-26,166.77-12,245.02

Finding the Fourth Proportional to 18,965.53, 26,166.77 and 12,245.02

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Solution

The fourth proportional to 18,965.53, 26,166.77 and 12,245.02 is: 16,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.53 : 26,166.77 = 12,245.02 : x
  2. Step 2: Convert to fraction form
    18,965.53/26,166.77 = 12,245.02/x
  3. Step 3: Cross multiply
    18,965.53x = 26,166.77 × 12,245.02
  4. Step 4: Simplify right side
    18,965.53x = 320,412,429.93
  5. Step 5: Solve for x
    x = 320,412,429.93/18,965.53
  6. Step 6: Final answer
    x = 16,894.47

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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.