Home / 13,576.84-18,718.57-8,788.30

Finding the Fourth Proportional to 13,576.84, 18,718.57 and 8,788.30

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Solution

The fourth proportional to 13,576.84, 18,718.57 and 8,788.30 is: 12,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.84 : 18,718.57 = 8,788.30 : x
  2. Step 2: Convert to fraction form
    13,576.84/18,718.57 = 8,788.30/x
  3. Step 3: Cross multiply
    13,576.84x = 18,718.57 × 8,788.30
  4. Step 4: Simplify right side
    13,576.84x = 164,504,408.73
  5. Step 5: Solve for x
    x = 164,504,408.73/13,576.84
  6. Step 6: Final answer
    x = 12,116.55

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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.