Home / 9,718.45-14,579.79-3,145.30

Finding the Fourth Proportional to 9,718.45, 14,579.79 and 3,145.30

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Solution

The fourth proportional to 9,718.45, 14,579.79 and 3,145.30 is: 4,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.45 : 14,579.79 = 3,145.30 : x
  2. Step 2: Convert to fraction form
    9,718.45/14,579.79 = 3,145.30/x
  3. Step 3: Cross multiply
    9,718.45x = 14,579.79 × 3,145.30
  4. Step 4: Simplify right side
    9,718.45x = 45,857,740.59
  5. Step 5: Solve for x
    x = 45,857,740.59/9,718.45
  6. Step 6: Final answer
    x = 4,718.63

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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.