Home / 13,576.84-18,737.70-8,272.42

Finding the Fourth Proportional to 13,576.84, 18,737.70 and 8,272.42

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Solution

The fourth proportional to 13,576.84, 18,737.70 and 8,272.42 is: 11,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.84 : 18,737.70 = 8,272.42 : x
  2. Step 2: Convert to fraction form
    13,576.84/18,737.70 = 8,272.42/x
  3. Step 3: Cross multiply
    13,576.84x = 18,737.70 × 8,272.42
  4. Step 4: Simplify right side
    13,576.84x = 155,006,124.23
  5. Step 5: Solve for x
    x = 155,006,124.23/13,576.84
  6. Step 6: Final answer
    x = 11,416.95

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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.