Home / 13,403.52-20,108.66-7,861.50

Finding the Fourth Proportional to 13,403.52, 20,108.66 and 7,861.50

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Solution

The fourth proportional to 13,403.52, 20,108.66 and 7,861.50 is: 11,794.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.52 : 20,108.66 = 7,861.50 : x
  2. Step 2: Convert to fraction form
    13,403.52/20,108.66 = 7,861.50/x
  3. Step 3: Cross multiply
    13,403.52x = 20,108.66 × 7,861.50
  4. Step 4: Simplify right side
    13,403.52x = 158,084,191.28
  5. Step 5: Solve for x
    x = 158,084,191.28/13,403.52
  6. Step 6: Final answer
    x = 11,794.23

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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.