Home / 18,860.75-26,039.23-12,492.79

Finding the Fourth Proportional to 18,860.75, 26,039.23 and 12,492.79

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Solution

The fourth proportional to 18,860.75, 26,039.23 and 12,492.79 is: 17,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.75 : 26,039.23 = 12,492.79 : x
  2. Step 2: Convert to fraction form
    18,860.75/26,039.23 = 12,492.79/x
  3. Step 3: Cross multiply
    18,860.75x = 26,039.23 × 12,492.79
  4. Step 4: Simplify right side
    18,860.75x = 325,302,806.75
  5. Step 5: Solve for x
    x = 325,302,806.75/18,860.75
  6. Step 6: Final answer
    x = 17,247.61

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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.