Home / 16,491.26-22,731.30-12,899.84

Finding the Fourth Proportional to 16,491.26, 22,731.30 and 12,899.84

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Solution

The fourth proportional to 16,491.26, 22,731.30 and 12,899.84 is: 17,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.26 : 22,731.30 = 12,899.84 : x
  2. Step 2: Convert to fraction form
    16,491.26/22,731.30 = 12,899.84/x
  3. Step 3: Cross multiply
    16,491.26x = 22,731.30 × 12,899.84
  4. Step 4: Simplify right side
    16,491.26x = 293,230,132.99
  5. Step 5: Solve for x
    x = 293,230,132.99/16,491.26
  6. Step 6: Final answer
    x = 17,780.94

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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.