Home / 12,291.03-18,432.54-3,969.09

Finding the Fourth Proportional to 12,291.03, 18,432.54 and 3,969.09

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Solution

The fourth proportional to 12,291.03, 18,432.54 and 3,969.09 is: 5,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.03 : 18,432.54 = 3,969.09 : x
  2. Step 2: Convert to fraction form
    12,291.03/18,432.54 = 3,969.09/x
  3. Step 3: Cross multiply
    12,291.03x = 18,432.54 × 3,969.09
  4. Step 4: Simplify right side
    12,291.03x = 73,160,410.19
  5. Step 5: Solve for x
    x = 73,160,410.19/12,291.03
  6. Step 6: Final answer
    x = 5,952.34

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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.