Home / 11,161.64-15,402.56-6,125.78

Finding the Fourth Proportional to 11,161.64, 15,402.56 and 6,125.78

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Solution

The fourth proportional to 11,161.64, 15,402.56 and 6,125.78 is: 8,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.64 : 15,402.56 = 6,125.78 : x
  2. Step 2: Convert to fraction form
    11,161.64/15,402.56 = 6,125.78/x
  3. Step 3: Cross multiply
    11,161.64x = 15,402.56 × 6,125.78
  4. Step 4: Simplify right side
    11,161.64x = 94,352,694.00
  5. Step 5: Solve for x
    x = 94,352,694.00/11,161.64
  6. Step 6: Final answer
    x = 8,453.30

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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.