Home / 15,323.10-21,163.68-12,267.60

Finding the Fourth Proportional to 15,323.10, 21,163.68 and 12,267.60

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Solution

The fourth proportional to 15,323.10, 21,163.68 and 12,267.60 is: 16,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.10 : 21,163.68 = 12,267.60 : x
  2. Step 2: Convert to fraction form
    15,323.10/21,163.68 = 12,267.60/x
  3. Step 3: Cross multiply
    15,323.10x = 21,163.68 × 12,267.60
  4. Step 4: Simplify right side
    15,323.10x = 259,627,560.77
  5. Step 5: Solve for x
    x = 259,627,560.77/15,323.10
  6. Step 6: Final answer
    x = 16,943.54

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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.