Home / 11,718.70-16,167.18-7,234.67

Finding the Fourth Proportional to 11,718.70, 16,167.18 and 7,234.67

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Solution

The fourth proportional to 11,718.70, 16,167.18 and 7,234.67 is: 9,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.70 : 16,167.18 = 7,234.67 : x
  2. Step 2: Convert to fraction form
    11,718.70/16,167.18 = 7,234.67/x
  3. Step 3: Cross multiply
    11,718.70x = 16,167.18 × 7,234.67
  4. Step 4: Simplify right side
    11,718.70x = 116,964,212.13
  5. Step 5: Solve for x
    x = 116,964,212.13/11,718.70
  6. Step 6: Final answer
    x = 9,980.99

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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.