Home / 9,212.94-13,818.24-2,639.70

Finding the Fourth Proportional to 9,212.94, 13,818.24 and 2,639.70

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Solution

The fourth proportional to 9,212.94, 13,818.24 and 2,639.70 is: 3,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.94 : 13,818.24 = 2,639.70 : x
  2. Step 2: Convert to fraction form
    9,212.94/13,818.24 = 2,639.70/x
  3. Step 3: Cross multiply
    9,212.94x = 13,818.24 × 2,639.70
  4. Step 4: Simplify right side
    9,212.94x = 36,476,008.13
  5. Step 5: Solve for x
    x = 36,476,008.13/9,212.94
  6. Step 6: Final answer
    x = 3,959.21

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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.