Home / 13,445.64-20,157.93-8,504.91

Finding the Fourth Proportional to 13,445.64, 20,157.93 and 8,504.91

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Solution

The fourth proportional to 13,445.64, 20,157.93 and 8,504.91 is: 12,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.64 : 20,157.93 = 8,504.91 : x
  2. Step 2: Convert to fraction form
    13,445.64/20,157.93 = 8,504.91/x
  3. Step 3: Cross multiply
    13,445.64x = 20,157.93 × 8,504.91
  4. Step 4: Simplify right side
    13,445.64x = 171,441,380.44
  5. Step 5: Solve for x
    x = 171,441,380.44/13,445.64
  6. Step 6: Final answer
    x = 12,750.70

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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.