Home / 12,436.62-18,663.12-5,864.67

Finding the Fourth Proportional to 12,436.62, 18,663.12 and 5,864.67

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Solution

The fourth proportional to 12,436.62, 18,663.12 and 5,864.67 is: 8,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.62 : 18,663.12 = 5,864.67 : x
  2. Step 2: Convert to fraction form
    12,436.62/18,663.12 = 5,864.67/x
  3. Step 3: Cross multiply
    12,436.62x = 18,663.12 × 5,864.67
  4. Step 4: Simplify right side
    12,436.62x = 109,453,039.97
  5. Step 5: Solve for x
    x = 109,453,039.97/12,436.62
  6. Step 6: Final answer
    x = 8,800.87

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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.