Home / 11,103.48-15,321.76-7,511.13

Finding the Fourth Proportional to 11,103.48, 15,321.76 and 7,511.13

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Solution

The fourth proportional to 11,103.48, 15,321.76 and 7,511.13 is: 10,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.48 : 15,321.76 = 7,511.13 : x
  2. Step 2: Convert to fraction form
    11,103.48/15,321.76 = 7,511.13/x
  3. Step 3: Cross multiply
    11,103.48x = 15,321.76 × 7,511.13
  4. Step 4: Simplify right side
    11,103.48x = 115,083,712.41
  5. Step 5: Solve for x
    x = 115,083,712.41/11,103.48
  6. Step 6: Final answer
    x = 10,364.65

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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.