Home / 8,471.20-11,690.93-4,694.71

Finding the Fourth Proportional to 8,471.20, 11,690.93 and 4,694.71

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Solution

The fourth proportional to 8,471.20, 11,690.93 and 4,694.71 is: 6,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.20 : 11,690.93 = 4,694.71 : x
  2. Step 2: Convert to fraction form
    8,471.20/11,690.93 = 4,694.71/x
  3. Step 3: Cross multiply
    8,471.20x = 11,690.93 × 4,694.71
  4. Step 4: Simplify right side
    8,471.20x = 54,885,525.98
  5. Step 5: Solve for x
    x = 54,885,525.98/8,471.20
  6. Step 6: Final answer
    x = 6,479.07

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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.