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Finding the Fourth Proportional to 12,798.98, 19,183.15 and 8,358.76

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Solution

The fourth proportional to 12,798.98, 19,183.15 and 8,358.76 is: 12,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.98 : 19,183.15 = 8,358.76 : x
  2. Step 2: Convert to fraction form
    12,798.98/19,183.15 = 8,358.76/x
  3. Step 3: Cross multiply
    12,798.98x = 19,183.15 × 8,358.76
  4. Step 4: Simplify right side
    12,798.98x = 160,347,346.89
  5. Step 5: Solve for x
    x = 160,347,346.89/12,798.98
  6. Step 6: Final answer
    x = 12,528.13

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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.