Home / 13,790.96-20,686.56-6,393.32

Finding the Fourth Proportional to 13,790.96, 20,686.56 and 6,393.32

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Solution

The fourth proportional to 13,790.96, 20,686.56 and 6,393.32 is: 9,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.96 : 20,686.56 = 6,393.32 : x
  2. Step 2: Convert to fraction form
    13,790.96/20,686.56 = 6,393.32/x
  3. Step 3: Cross multiply
    13,790.96x = 20,686.56 × 6,393.32
  4. Step 4: Simplify right side
    13,790.96x = 132,255,797.78
  5. Step 5: Solve for x
    x = 132,255,797.78/13,790.96
  6. Step 6: Final answer
    x = 9,590.04

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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.