Home / 13,554.08-18,706.28-8,249.68

Finding the Fourth Proportional to 13,554.08, 18,706.28 and 8,249.68

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Solution

The fourth proportional to 13,554.08, 18,706.28 and 8,249.68 is: 11,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.08 : 18,706.28 = 8,249.68 : x
  2. Step 2: Convert to fraction form
    13,554.08/18,706.28 = 8,249.68/x
  3. Step 3: Cross multiply
    13,554.08x = 18,706.28 × 8,249.68
  4. Step 4: Simplify right side
    13,554.08x = 154,320,823.99
  5. Step 5: Solve for x
    x = 154,320,823.99/13,554.08
  6. Step 6: Final answer
    x = 11,385.56

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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.