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Finding the Fourth Proportional to 12,345.84, 18,519.11 and 4,849.08

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Solution

The fourth proportional to 12,345.84, 18,519.11 and 4,849.08 is: 7,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.84 : 18,519.11 = 4,849.08 : x
  2. Step 2: Convert to fraction form
    12,345.84/18,519.11 = 4,849.08/x
  3. Step 3: Cross multiply
    12,345.84x = 18,519.11 × 4,849.08
  4. Step 4: Simplify right side
    12,345.84x = 89,800,621.67
  5. Step 5: Solve for x
    x = 89,800,621.67/12,345.84
  6. Step 6: Final answer
    x = 7,273.76

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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.