Home / 11,478.04-17,218.68-3,685

Finding the Fourth Proportional to 11,478.04, 17,218.68 and 3,685

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Solution

The fourth proportional to 11,478.04, 17,218.68 and 3,685 is: 5,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.04 : 17,218.68 = 3,685 : x
  2. Step 2: Convert to fraction form
    11,478.04/17,218.68 = 3,685/x
  3. Step 3: Cross multiply
    11,478.04x = 17,218.68 × 3,685
  4. Step 4: Simplify right side
    11,478.04x = 63,450,835.80
  5. Step 5: Solve for x
    x = 63,450,835.80/11,478.04
  6. Step 6: Final answer
    x = 5,528.02

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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.