Home / 8,217.10-11,340.77-4,680.64

Finding the Fourth Proportional to 8,217.10, 11,340.77 and 4,680.64

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Solution

The fourth proportional to 8,217.10, 11,340.77 and 4,680.64 is: 6,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.10 : 11,340.77 = 4,680.64 : x
  2. Step 2: Convert to fraction form
    8,217.10/11,340.77 = 4,680.64/x
  3. Step 3: Cross multiply
    8,217.10x = 11,340.77 × 4,680.64
  4. Step 4: Simplify right side
    8,217.10x = 53,082,061.69
  5. Step 5: Solve for x
    x = 53,082,061.69/8,217.10
  6. Step 6: Final answer
    x = 6,459.95

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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.