Home / 11,182.76-15,438.32-7,835.84

Finding the Fourth Proportional to 11,182.76, 15,438.32 and 7,835.84

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Solution

The fourth proportional to 11,182.76, 15,438.32 and 7,835.84 is: 10,817.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.76 : 15,438.32 = 7,835.84 : x
  2. Step 2: Convert to fraction form
    11,182.76/15,438.32 = 7,835.84/x
  3. Step 3: Cross multiply
    11,182.76x = 15,438.32 × 7,835.84
  4. Step 4: Simplify right side
    11,182.76x = 120,972,205.39
  5. Step 5: Solve for x
    x = 120,972,205.39/11,182.76
  6. Step 6: Final answer
    x = 10,817.74

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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.