Home / 11,820.14-16,319.38-7,349.96

Finding the Fourth Proportional to 11,820.14, 16,319.38 and 7,349.96

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Solution

The fourth proportional to 11,820.14, 16,319.38 and 7,349.96 is: 10,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.14 : 16,319.38 = 7,349.96 : x
  2. Step 2: Convert to fraction form
    11,820.14/16,319.38 = 7,349.96/x
  3. Step 3: Cross multiply
    11,820.14x = 16,319.38 × 7,349.96
  4. Step 4: Simplify right side
    11,820.14x = 119,946,812.65
  5. Step 5: Solve for x
    x = 119,946,812.65/11,820.14
  6. Step 6: Final answer
    x = 10,147.67

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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.