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Finding the Fourth Proportional to 8,339.67, 12,509.46 and 2,183.67

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Solution

The fourth proportional to 8,339.67, 12,509.46 and 2,183.67 is: 3,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.67 : 12,509.46 = 2,183.67 : x
  2. Step 2: Convert to fraction form
    8,339.67/12,509.46 = 2,183.67/x
  3. Step 3: Cross multiply
    8,339.67x = 12,509.46 × 2,183.67
  4. Step 4: Simplify right side
    8,339.67x = 27,316,532.52
  5. Step 5: Solve for x
    x = 27,316,532.52/8,339.67
  6. Step 6: Final answer
    x = 3,275.49

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Half scale
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Double scale
Find fourth proportional to 8,340.67, 12,510.96 and 2,184.67
Similar ratio
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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.