Home / 13,601.48-18,752.82-8,878.28

Finding the Fourth Proportional to 13,601.48, 18,752.82 and 8,878.28

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Solution

The fourth proportional to 13,601.48, 18,752.82 and 8,878.28 is: 12,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.48 : 18,752.82 = 8,878.28 : x
  2. Step 2: Convert to fraction form
    13,601.48/18,752.82 = 8,878.28/x
  3. Step 3: Cross multiply
    13,601.48x = 18,752.82 × 8,878.28
  4. Step 4: Simplify right side
    13,601.48x = 166,492,786.75
  5. Step 5: Solve for x
    x = 166,492,786.75/13,601.48
  6. Step 6: Final answer
    x = 12,240.78

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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.