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Finding the Fourth Proportional to 10,720.99, 16,063.89 and 10,310.95

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Solution

The fourth proportional to 10,720.99, 16,063.89 and 10,310.95 is: 15,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.99 : 16,063.89 = 10,310.95 : x
  2. Step 2: Convert to fraction form
    10,720.99/16,063.89 = 10,310.95/x
  3. Step 3: Cross multiply
    10,720.99x = 16,063.89 × 10,310.95
  4. Step 4: Simplify right side
    10,720.99x = 165,633,966.60
  5. Step 5: Solve for x
    x = 165,633,966.60/10,720.99
  6. Step 6: Final answer
    x = 15,449.50

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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.