Home / 15,243.96-21,037.26-11,511.48

Finding the Fourth Proportional to 15,243.96, 21,037.26 and 11,511.48

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Solution

The fourth proportional to 15,243.96, 21,037.26 and 11,511.48 is: 15,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.96 : 21,037.26 = 11,511.48 : x
  2. Step 2: Convert to fraction form
    15,243.96/21,037.26 = 11,511.48/x
  3. Step 3: Cross multiply
    15,243.96x = 21,037.26 × 11,511.48
  4. Step 4: Simplify right side
    15,243.96x = 242,169,997.74
  5. Step 5: Solve for x
    x = 242,169,997.74/15,243.96
  6. Step 6: Final answer
    x = 15,886.29

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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.