Home / 11,163.51-15,403.77-6,446.88

Finding the Fourth Proportional to 11,163.51, 15,403.77 and 6,446.88

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Solution

The fourth proportional to 11,163.51, 15,403.77 and 6,446.88 is: 8,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.51 : 15,403.77 = 6,446.88 : x
  2. Step 2: Convert to fraction form
    11,163.51/15,403.77 = 6,446.88/x
  3. Step 3: Cross multiply
    11,163.51x = 15,403.77 × 6,446.88
  4. Step 4: Simplify right side
    11,163.51x = 99,306,256.74
  5. Step 5: Solve for x
    x = 99,306,256.74/11,163.51
  6. Step 6: Final answer
    x = 8,895.61

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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.