Home / 15,224.84-21,010.68-8,511.20

Finding the Fourth Proportional to 15,224.84, 21,010.68 and 8,511.20

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Solution

The fourth proportional to 15,224.84, 21,010.68 and 8,511.20 is: 11,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.84 : 21,010.68 = 8,511.20 : x
  2. Step 2: Convert to fraction form
    15,224.84/21,010.68 = 8,511.20/x
  3. Step 3: Cross multiply
    15,224.84x = 21,010.68 × 8,511.20
  4. Step 4: Simplify right side
    15,224.84x = 178,826,099.62
  5. Step 5: Solve for x
    x = 178,826,099.62/15,224.84
  6. Step 6: Final answer
    x = 11,745.68

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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.