Home / 13,339.88-20,009.74-5,445.64

Finding the Fourth Proportional to 13,339.88, 20,009.74 and 5,445.64

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Solution

The fourth proportional to 13,339.88, 20,009.74 and 5,445.64 is: 8,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.88 : 20,009.74 = 5,445.64 : x
  2. Step 2: Convert to fraction form
    13,339.88/20,009.74 = 5,445.64/x
  3. Step 3: Cross multiply
    13,339.88x = 20,009.74 × 5,445.64
  4. Step 4: Simplify right side
    13,339.88x = 108,965,840.53
  5. Step 5: Solve for x
    x = 108,965,840.53/13,339.88
  6. Step 6: Final answer
    x = 8,168.43

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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.