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Finding the Fourth Proportional to 16,690.05, 25,031.79 and 6,160.05

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Solution

The fourth proportional to 16,690.05, 25,031.79 and 6,160.05 is: 9,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.05 : 25,031.79 = 6,160.05 : x
  2. Step 2: Convert to fraction form
    16,690.05/25,031.79 = 6,160.05/x
  3. Step 3: Cross multiply
    16,690.05x = 25,031.79 × 6,160.05
  4. Step 4: Simplify right side
    16,690.05x = 154,197,077.99
  5. Step 5: Solve for x
    x = 154,197,077.99/16,690.05
  6. Step 6: Final answer
    x = 9,238.86

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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.