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Finding the Fourth Proportional to 16,900.40, 25,350.98 and 5,213.63

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Solution

The fourth proportional to 16,900.40, 25,350.98 and 5,213.63 is: 7,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,900.40 : 25,350.98 = 5,213.63 : x
  2. Step 2: Convert to fraction form
    16,900.40/25,350.98 = 5,213.63/x
  3. Step 3: Cross multiply
    16,900.40x = 25,350.98 × 5,213.63
  4. Step 4: Simplify right side
    16,900.40x = 132,170,477.03
  5. Step 5: Solve for x
    x = 132,170,477.03/16,900.40
  6. Step 6: Final answer
    x = 7,820.56

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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.