Home / 12,520.44-18,776.88-4,727.34

Finding the Fourth Proportional to 12,520.44, 18,776.88 and 4,727.34

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Solution

The fourth proportional to 12,520.44, 18,776.88 and 4,727.34 is: 7,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.44 : 18,776.88 = 4,727.34 : x
  2. Step 2: Convert to fraction form
    12,520.44/18,776.88 = 4,727.34/x
  3. Step 3: Cross multiply
    12,520.44x = 18,776.88 × 4,727.34
  4. Step 4: Simplify right side
    12,520.44x = 88,764,695.90
  5. Step 5: Solve for x
    x = 88,764,695.90/12,520.44
  6. Step 6: Final answer
    x = 7,089.58

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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.