Home / 13,663.36-20,511.24-11,499.04

Finding the Fourth Proportional to 13,663.36, 20,511.24 and 11,499.04

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Solution

The fourth proportional to 13,663.36, 20,511.24 and 11,499.04 is: 17,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.36 : 20,511.24 = 11,499.04 : x
  2. Step 2: Convert to fraction form
    13,663.36/20,511.24 = 11,499.04/x
  3. Step 3: Cross multiply
    13,663.36x = 20,511.24 × 11,499.04
  4. Step 4: Simplify right side
    13,663.36x = 235,859,569.21
  5. Step 5: Solve for x
    x = 235,859,569.21/13,663.36
  6. Step 6: Final answer
    x = 17,262.19

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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.