Home / 13,511.08-18,646.11-7,542.73

Finding the Fourth Proportional to 13,511.08, 18,646.11 and 7,542.73

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Solution

The fourth proportional to 13,511.08, 18,646.11 and 7,542.73 is: 10,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.08 : 18,646.11 = 7,542.73 : x
  2. Step 2: Convert to fraction form
    13,511.08/18,646.11 = 7,542.73/x
  3. Step 3: Cross multiply
    13,511.08x = 18,646.11 × 7,542.73
  4. Step 4: Simplify right side
    13,511.08x = 140,642,573.28
  5. Step 5: Solve for x
    x = 140,642,573.28/13,511.08
  6. Step 6: Final answer
    x = 10,409.42

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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.