Home / 11,496.15-15,864.48-6,391.98

Finding the Fourth Proportional to 11,496.15, 15,864.48 and 6,391.98

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Solution

The fourth proportional to 11,496.15, 15,864.48 and 6,391.98 is: 8,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,496.15 : 15,864.48 = 6,391.98 : x
  2. Step 2: Convert to fraction form
    11,496.15/15,864.48 = 6,391.98/x
  3. Step 3: Cross multiply
    11,496.15x = 15,864.48 × 6,391.98
  4. Step 4: Simplify right side
    11,496.15x = 101,405,438.87
  5. Step 5: Solve for x
    x = 101,405,438.87/11,496.15
  6. Step 6: Final answer
    x = 8,820.82

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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.