Home / 11,153.82-15,393.56-6,677.57

Finding the Fourth Proportional to 11,153.82, 15,393.56 and 6,677.57

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Solution

The fourth proportional to 11,153.82, 15,393.56 and 6,677.57 is: 9,215.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.82 : 15,393.56 = 6,677.57 : x
  2. Step 2: Convert to fraction form
    11,153.82/15,393.56 = 6,677.57/x
  3. Step 3: Cross multiply
    11,153.82x = 15,393.56 × 6,677.57
  4. Step 4: Simplify right side
    11,153.82x = 102,791,588.24
  5. Step 5: Solve for x
    x = 102,791,588.24/11,153.82
  6. Step 6: Final answer
    x = 9,215.82

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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.