Home / 11,447.85-15,797.61-6,411.82

Finding the Fourth Proportional to 11,447.85, 15,797.61 and 6,411.82

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Solution

The fourth proportional to 11,447.85, 15,797.61 and 6,411.82 is: 8,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.85 : 15,797.61 = 6,411.82 : x
  2. Step 2: Convert to fraction form
    11,447.85/15,797.61 = 6,411.82/x
  3. Step 3: Cross multiply
    11,447.85x = 15,797.61 × 6,411.82
  4. Step 4: Simplify right side
    11,447.85x = 101,291,431.75
  5. Step 5: Solve for x
    x = 101,291,431.75/11,447.85
  6. Step 6: Final answer
    x = 8,848.07

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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.