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Finding the Fourth Proportional to 14,000.68, 20,969.28 and 10,855.48

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Solution

The fourth proportional to 14,000.68, 20,969.28 and 10,855.48 is: 16,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.68 : 20,969.28 = 10,855.48 : x
  2. Step 2: Convert to fraction form
    14,000.68/20,969.28 = 10,855.48/x
  3. Step 3: Cross multiply
    14,000.68x = 20,969.28 × 10,855.48
  4. Step 4: Simplify right side
    14,000.68x = 227,631,599.65
  5. Step 5: Solve for x
    x = 227,631,599.65/14,000.68
  6. Step 6: Final answer
    x = 16,258.61

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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.