Home / 13,511.61-20,267.42-11,519.01

Finding the Fourth Proportional to 13,511.61, 20,267.42 and 11,519.01

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Solution

The fourth proportional to 13,511.61, 20,267.42 and 11,519.01 is: 17,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.61 : 20,267.42 = 11,519.01 : x
  2. Step 2: Convert to fraction form
    13,511.61/20,267.42 = 11,519.01/x
  3. Step 3: Cross multiply
    13,511.61x = 20,267.42 × 11,519.01
  4. Step 4: Simplify right side
    13,511.61x = 233,460,556.06
  5. Step 5: Solve for x
    x = 233,460,556.06/13,511.61
  6. Step 6: Final answer
    x = 17,278.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.