Home / 13,310.65-19,969.01-4,545.44

Finding the Fourth Proportional to 13,310.65, 19,969.01 and 4,545.44

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Solution

The fourth proportional to 13,310.65, 19,969.01 and 4,545.44 is: 6,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.65 : 19,969.01 = 4,545.44 : x
  2. Step 2: Convert to fraction form
    13,310.65/19,969.01 = 4,545.44/x
  3. Step 3: Cross multiply
    13,310.65x = 19,969.01 × 4,545.44
  4. Step 4: Simplify right side
    13,310.65x = 90,767,936.81
  5. Step 5: Solve for x
    x = 90,767,936.81/13,310.65
  6. Step 6: Final answer
    x = 6,819.20

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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.