Home / 8,169.11-11,274.63-4,631.57

Finding the Fourth Proportional to 8,169.11, 11,274.63 and 4,631.57

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Solution

The fourth proportional to 8,169.11, 11,274.63 and 4,631.57 is: 6,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.11 : 11,274.63 = 4,631.57 : x
  2. Step 2: Convert to fraction form
    8,169.11/11,274.63 = 4,631.57/x
  3. Step 3: Cross multiply
    8,169.11x = 11,274.63 × 4,631.57
  4. Step 4: Simplify right side
    8,169.11x = 52,219,238.07
  5. Step 5: Solve for x
    x = 52,219,238.07/8,169.11
  6. Step 6: Final answer
    x = 6,392.28

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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.