Home / 11,153.93-15,393.71-6,677.68

Finding the Fourth Proportional to 11,153.93, 15,393.71 and 6,677.68

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Solution

The fourth proportional to 11,153.93, 15,393.71 and 6,677.68 is: 9,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.93 : 15,393.71 = 6,677.68 : x
  2. Step 2: Convert to fraction form
    11,153.93/15,393.71 = 6,677.68/x
  3. Step 3: Cross multiply
    11,153.93x = 15,393.71 × 6,677.68
  4. Step 4: Simplify right side
    11,153.93x = 102,794,269.39
  5. Step 5: Solve for x
    x = 102,794,269.39/11,153.93
  6. Step 6: Final answer
    x = 9,215.97

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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.