Home / 16,315.28-22,515.36-8,863.28

Finding the Fourth Proportional to 16,315.28, 22,515.36 and 8,863.28

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Solution

The fourth proportional to 16,315.28, 22,515.36 and 8,863.28 is: 12,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,315.28 : 22,515.36 = 8,863.28 : x
  2. Step 2: Convert to fraction form
    16,315.28/22,515.36 = 8,863.28/x
  3. Step 3: Cross multiply
    16,315.28x = 22,515.36 × 8,863.28
  4. Step 4: Simplify right side
    16,315.28x = 199,559,939.98
  5. Step 5: Solve for x
    x = 199,559,939.98/16,315.28
  6. Step 6: Final answer
    x = 12,231.48

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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.