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Finding the Fourth Proportional to 14,934, 20,607.57 and 8,219.91

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Solution

The fourth proportional to 14,934, 20,607.57 and 8,219.91 is: 11,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,934 : 20,607.57 = 8,219.91 : x
  2. Step 2: Convert to fraction form
    14,934/20,607.57 = 8,219.91/x
  3. Step 3: Cross multiply
    14,934x = 20,607.57 × 8,219.91
  4. Step 4: Simplify right side
    14,934x = 169,392,370.72
  5. Step 5: Solve for x
    x = 169,392,370.72/14,934
  6. Step 6: Final answer
    x = 11,342.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.