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Finding the Fourth Proportional to 15,797.12, 21,798.90 and 9,082.71

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Solution

The fourth proportional to 15,797.12, 21,798.90 and 9,082.71 is: 12,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.12 : 21,798.90 = 9,082.71 : x
  2. Step 2: Convert to fraction form
    15,797.12/21,798.90 = 9,082.71/x
  3. Step 3: Cross multiply
    15,797.12x = 21,798.90 × 9,082.71
  4. Step 4: Simplify right side
    15,797.12x = 197,993,087.02
  5. Step 5: Solve for x
    x = 197,993,087.02/15,797.12
  6. Step 6: Final answer
    x = 12,533.50

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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.