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Finding the Fourth Proportional to 8,471, 11,690.08 and 4,934.54

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Solution

The fourth proportional to 8,471, 11,690.08 and 4,934.54 is: 6,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471 : 11,690.08 = 4,934.54 : x
  2. Step 2: Convert to fraction form
    8,471/11,690.08 = 4,934.54/x
  3. Step 3: Cross multiply
    8,471x = 11,690.08 × 4,934.54
  4. Step 4: Simplify right side
    8,471x = 57,685,167.36
  5. Step 5: Solve for x
    x = 57,685,167.36/8,471
  6. Step 6: Final answer
    x = 6,809.72

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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.