Home / 11,474.09-15,834.52-6,438.69

Finding the Fourth Proportional to 11,474.09, 15,834.52 and 6,438.69

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Solution

The fourth proportional to 11,474.09, 15,834.52 and 6,438.69 is: 8,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.09 : 15,834.52 = 6,438.69 : x
  2. Step 2: Convert to fraction form
    11,474.09/15,834.52 = 6,438.69/x
  3. Step 3: Cross multiply
    11,474.09x = 15,834.52 × 6,438.69
  4. Step 4: Simplify right side
    11,474.09x = 101,953,573.63
  5. Step 5: Solve for x
    x = 101,953,573.63/11,474.09
  6. Step 6: Final answer
    x = 8,885.55

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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.