Home / 23,117.94-34,678.91-8,123.78

Finding the Fourth Proportional to 23,117.94, 34,678.91 and 8,123.78

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Solution

The fourth proportional to 23,117.94, 34,678.91 and 8,123.78 is: 12,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,117.94 : 34,678.91 = 8,123.78 : x
  2. Step 2: Convert to fraction form
    23,117.94/34,678.91 = 8,123.78/x
  3. Step 3: Cross multiply
    23,117.94x = 34,678.91 × 8,123.78
  4. Step 4: Simplify right side
    23,117.94x = 281,723,724.57
  5. Step 5: Solve for x
    x = 281,723,724.57/23,117.94
  6. Step 6: Final answer
    x = 12,186.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.