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Finding the Fourth Proportional to 9,719.84, 14,570.84 and 3,478.38

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Solution

The fourth proportional to 9,719.84, 14,570.84 and 3,478.38 is: 5,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.84 : 14,570.84 = 3,478.38 : x
  2. Step 2: Convert to fraction form
    9,719.84/14,570.84 = 3,478.38/x
  3. Step 3: Cross multiply
    9,719.84x = 14,570.84 × 3,478.38
  4. Step 4: Simplify right side
    9,719.84x = 50,682,901.05
  5. Step 5: Solve for x
    x = 50,682,901.05/9,719.84
  6. Step 6: Final answer
    x = 5,214.38

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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.