Home / 15,269.64-21,078.90-11,493.96

Finding the Fourth Proportional to 15,269.64, 21,078.90 and 11,493.96

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Solution

The fourth proportional to 15,269.64, 21,078.90 and 11,493.96 is: 15,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.64 : 21,078.90 = 11,493.96 : x
  2. Step 2: Convert to fraction form
    15,269.64/21,078.90 = 11,493.96/x
  3. Step 3: Cross multiply
    15,269.64x = 21,078.90 × 11,493.96
  4. Step 4: Simplify right side
    15,269.64x = 242,280,033.44
  5. Step 5: Solve for x
    x = 242,280,033.44/15,269.64
  6. Step 6: Final answer
    x = 15,866.78

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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.