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Finding the Fourth Proportional to 16,882.50, 25,315.10 and 8,989.50

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Solution

The fourth proportional to 16,882.50, 25,315.10 and 8,989.50 is: 13,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,882.50 : 25,315.10 = 8,989.50 : x
  2. Step 2: Convert to fraction form
    16,882.50/25,315.10 = 8,989.50/x
  3. Step 3: Cross multiply
    16,882.50x = 25,315.10 × 8,989.50
  4. Step 4: Simplify right side
    16,882.50x = 227,570,091.45
  5. Step 5: Solve for x
    x = 227,570,091.45/16,882.50
  6. Step 6: Final answer
    x = 13,479.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.