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Finding the Fourth Proportional to 12,883, 19,319.58 and 5,490.92

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Solution

The fourth proportional to 12,883, 19,319.58 and 5,490.92 is: 8,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883 : 19,319.58 = 5,490.92 : x
  2. Step 2: Convert to fraction form
    12,883/19,319.58 = 5,490.92/x
  3. Step 3: Cross multiply
    12,883x = 19,319.58 × 5,490.92
  4. Step 4: Simplify right side
    12,883x = 106,082,268.21
  5. Step 5: Solve for x
    x = 106,082,268.21/12,883
  6. Step 6: Final answer
    x = 8,234.28

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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.