Home / 10,320-15,480.36-3,395.04

Finding the Fourth Proportional to 10,320, 15,480.36 and 3,395.04

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Solution

The fourth proportional to 10,320, 15,480.36 and 3,395.04 is: 5,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320 : 15,480.36 = 3,395.04 : x
  2. Step 2: Convert to fraction form
    10,320/15,480.36 = 3,395.04/x
  3. Step 3: Cross multiply
    10,320x = 15,480.36 × 3,395.04
  4. Step 4: Simplify right side
    10,320x = 52,556,441.41
  5. Step 5: Solve for x
    x = 52,556,441.41/10,320
  6. Step 6: Final answer
    x = 5,092.68

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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.