Home / 8,286.14-12,429.31-2,953.55

Finding the Fourth Proportional to 8,286.14, 12,429.31 and 2,953.55

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Solution

The fourth proportional to 8,286.14, 12,429.31 and 2,953.55 is: 4,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.14 : 12,429.31 = 2,953.55 : x
  2. Step 2: Convert to fraction form
    8,286.14/12,429.31 = 2,953.55/x
  3. Step 3: Cross multiply
    8,286.14x = 12,429.31 × 2,953.55
  4. Step 4: Simplify right side
    8,286.14x = 36,710,612.24
  5. Step 5: Solve for x
    x = 36,710,612.24/8,286.14
  6. Step 6: Final answer
    x = 4,430.37

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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.