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Finding the Fourth Proportional to 15,797.53, 21,800.19 and 8,723.80

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Solution

The fourth proportional to 15,797.53, 21,800.19 and 8,723.80 is: 12,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.53 : 21,800.19 = 8,723.80 : x
  2. Step 2: Convert to fraction form
    15,797.53/21,800.19 = 8,723.80/x
  3. Step 3: Cross multiply
    15,797.53x = 21,800.19 × 8,723.80
  4. Step 4: Simplify right side
    15,797.53x = 190,180,497.52
  5. Step 5: Solve for x
    x = 190,180,497.52/15,797.53
  6. Step 6: Final answer
    x = 12,038.62

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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.