Home / 11,797.53-16,280.45-6,420.12

Finding the Fourth Proportional to 11,797.53, 16,280.45 and 6,420.12

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Solution

The fourth proportional to 11,797.53, 16,280.45 and 6,420.12 is: 8,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,797.53 : 16,280.45 = 6,420.12 : x
  2. Step 2: Convert to fraction form
    11,797.53/16,280.45 = 6,420.12/x
  3. Step 3: Cross multiply
    11,797.53x = 16,280.45 × 6,420.12
  4. Step 4: Simplify right side
    11,797.53x = 104,522,442.65
  5. Step 5: Solve for x
    x = 104,522,442.65/11,797.53
  6. Step 6: Final answer
    x = 8,859.69

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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.