Home / 13,467.50-20,188.77-6,879.15

Finding the Fourth Proportional to 13,467.50, 20,188.77 and 6,879.15

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Solution

The fourth proportional to 13,467.50, 20,188.77 and 6,879.15 is: 10,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.50 : 20,188.77 = 6,879.15 : x
  2. Step 2: Convert to fraction form
    13,467.50/20,188.77 = 6,879.15/x
  3. Step 3: Cross multiply
    13,467.50x = 20,188.77 × 6,879.15
  4. Step 4: Simplify right side
    13,467.50x = 138,881,577.15
  5. Step 5: Solve for x
    x = 138,881,577.15/13,467.50
  6. Step 6: Final answer
    x = 10,312.35

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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.