Home / 15,114.45-20,852.80-8,739.35

Finding the Fourth Proportional to 15,114.45, 20,852.80 and 8,739.35

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Solution

The fourth proportional to 15,114.45, 20,852.80 and 8,739.35 is: 12,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.45 : 20,852.80 = 8,739.35 : x
  2. Step 2: Convert to fraction form
    15,114.45/20,852.80 = 8,739.35/x
  3. Step 3: Cross multiply
    15,114.45x = 20,852.80 × 8,739.35
  4. Step 4: Simplify right side
    15,114.45x = 182,239,917.68
  5. Step 5: Solve for x
    x = 182,239,917.68/15,114.45
  6. Step 6: Final answer
    x = 12,057.33

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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.