Home / 10,002.80-15,004.26-3,429.02

Finding the Fourth Proportional to 10,002.80, 15,004.26 and 3,429.02

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Solution

The fourth proportional to 10,002.80, 15,004.26 and 3,429.02 is: 5,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.80 : 15,004.26 = 3,429.02 : x
  2. Step 2: Convert to fraction form
    10,002.80/15,004.26 = 3,429.02/x
  3. Step 3: Cross multiply
    10,002.80x = 15,004.26 × 3,429.02
  4. Step 4: Simplify right side
    10,002.80x = 51,449,907.63
  5. Step 5: Solve for x
    x = 51,449,907.63/10,002.80
  6. Step 6: Final answer
    x = 5,143.55

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1.5x scale

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.