Home / 13,293.03-18,344.30-7,987.80

Finding the Fourth Proportional to 13,293.03, 18,344.30 and 7,987.80

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Solution

The fourth proportional to 13,293.03, 18,344.30 and 7,987.80 is: 11,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.03 : 18,344.30 = 7,987.80 : x
  2. Step 2: Convert to fraction form
    13,293.03/18,344.30 = 7,987.80/x
  3. Step 3: Cross multiply
    13,293.03x = 18,344.30 × 7,987.80
  4. Step 4: Simplify right side
    13,293.03x = 146,530,559.60
  5. Step 5: Solve for x
    x = 146,530,559.60/13,293.03
  6. Step 6: Final answer
    x = 11,023.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.