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Finding the Fourth Proportional to 16,315.88, 22,515.93 and 8,863.88

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Solution

The fourth proportional to 16,315.88, 22,515.93 and 8,863.88 is: 12,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,315.88 : 22,515.93 = 8,863.88 : x
  2. Step 2: Convert to fraction form
    16,315.88/22,515.93 = 8,863.88/x
  3. Step 3: Cross multiply
    16,315.88x = 22,515.93 × 8,863.88
  4. Step 4: Simplify right side
    16,315.88x = 199,578,501.61
  5. Step 5: Solve for x
    x = 199,578,501.61/16,315.88
  6. Step 6: Final answer
    x = 12,232.16

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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.