Home / 11,511.36-15,885.36-6,543.36

Finding the Fourth Proportional to 11,511.36, 15,885.36 and 6,543.36

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Solution

The fourth proportional to 11,511.36, 15,885.36 and 6,543.36 is: 9,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.36 : 15,885.36 = 6,543.36 : x
  2. Step 2: Convert to fraction form
    11,511.36/15,885.36 = 6,543.36/x
  3. Step 3: Cross multiply
    11,511.36x = 15,885.36 × 6,543.36
  4. Step 4: Simplify right side
    11,511.36x = 103,943,629.21
  5. Step 5: Solve for x
    x = 103,943,629.21/11,511.36
  6. Step 6: Final answer
    x = 9,029.66

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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.