Home / 13,591.63-20,387.58-3,730.91

Finding the Fourth Proportional to 13,591.63, 20,387.58 and 3,730.91

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Solution

The fourth proportional to 13,591.63, 20,387.58 and 3,730.91 is: 5,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.63 : 20,387.58 = 3,730.91 : x
  2. Step 2: Convert to fraction form
    13,591.63/20,387.58 = 3,730.91/x
  3. Step 3: Cross multiply
    13,591.63x = 20,387.58 × 3,730.91
  4. Step 4: Simplify right side
    13,591.63x = 76,064,245.84
  5. Step 5: Solve for x
    x = 76,064,245.84/13,591.63
  6. Step 6: Final answer
    x = 5,596.40

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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.