Home / 11,127.39-15,357.20-6,653.61

Finding the Fourth Proportional to 11,127.39, 15,357.20 and 6,653.61

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Solution

The fourth proportional to 11,127.39, 15,357.20 and 6,653.61 is: 9,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.39 : 15,357.20 = 6,653.61 : x
  2. Step 2: Convert to fraction form
    11,127.39/15,357.20 = 6,653.61/x
  3. Step 3: Cross multiply
    11,127.39x = 15,357.20 × 6,653.61
  4. Step 4: Simplify right side
    11,127.39x = 102,180,786.22
  5. Step 5: Solve for x
    x = 102,180,786.22/11,127.39
  6. Step 6: Final answer
    x = 9,182.82

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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.