Home / 11,160.24-15,403.41-6,443.88

Finding the Fourth Proportional to 11,160.24, 15,403.41 and 6,443.88

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Solution

The fourth proportional to 11,160.24, 15,403.41 and 6,443.88 is: 8,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.24 : 15,403.41 = 6,443.88 : x
  2. Step 2: Convert to fraction form
    11,160.24/15,403.41 = 6,443.88/x
  3. Step 3: Cross multiply
    11,160.24x = 15,403.41 × 6,443.88
  4. Step 4: Simplify right side
    11,160.24x = 99,257,725.63
  5. Step 5: Solve for x
    x = 99,257,725.63/11,160.24
  6. Step 6: Final answer
    x = 8,893.87

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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.