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Finding the Fourth Proportional to 18,846.84, 26,005.26 and 12,219

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Solution

The fourth proportional to 18,846.84, 26,005.26 and 12,219 is: 16,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.84 : 26,005.26 = 12,219 : x
  2. Step 2: Convert to fraction form
    18,846.84/26,005.26 = 12,219/x
  3. Step 3: Cross multiply
    18,846.84x = 26,005.26 × 12,219
  4. Step 4: Simplify right side
    18,846.84x = 317,758,271.94
  5. Step 5: Solve for x
    x = 317,758,271.94/18,846.84
  6. Step 6: Final answer
    x = 16,860.03

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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.