Home / 11,161.56-15,403.10-6,125.68

Finding the Fourth Proportional to 11,161.56, 15,403.10 and 6,125.68

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Solution

The fourth proportional to 11,161.56, 15,403.10 and 6,125.68 is: 8,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.56 : 15,403.10 = 6,125.68 : x
  2. Step 2: Convert to fraction form
    11,161.56/15,403.10 = 6,125.68/x
  3. Step 3: Cross multiply
    11,161.56x = 15,403.10 × 6,125.68
  4. Step 4: Simplify right side
    11,161.56x = 94,354,461.61
  5. Step 5: Solve for x
    x = 94,354,461.61/11,161.56
  6. Step 6: Final answer
    x = 8,453.52

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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.