Home / 10,389.80-15,584.76-3,464.28

Finding the Fourth Proportional to 10,389.80, 15,584.76 and 3,464.28

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Solution

The fourth proportional to 10,389.80, 15,584.76 and 3,464.28 is: 5,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.80 : 15,584.76 = 3,464.28 : x
  2. Step 2: Convert to fraction form
    10,389.80/15,584.76 = 3,464.28/x
  3. Step 3: Cross multiply
    10,389.80x = 15,584.76 × 3,464.28
  4. Step 4: Simplify right side
    10,389.80x = 53,989,972.37
  5. Step 5: Solve for x
    x = 53,989,972.37/10,389.80
  6. Step 6: Final answer
    x = 5,196.44

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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.