Home / 15,063.12-20,782.44-8,771.04

Finding the Fourth Proportional to 15,063.12, 20,782.44 and 8,771.04

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Solution

The fourth proportional to 15,063.12, 20,782.44 and 8,771.04 is: 12,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.12 : 20,782.44 = 8,771.04 : x
  2. Step 2: Convert to fraction form
    15,063.12/20,782.44 = 8,771.04/x
  3. Step 3: Cross multiply
    15,063.12x = 20,782.44 × 8,771.04
  4. Step 4: Simplify right side
    15,063.12x = 182,283,612.54
  5. Step 5: Solve for x
    x = 182,283,612.54/15,063.12
  6. Step 6: Final answer
    x = 12,101.32

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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.