Home / 13,520.66-20,287.13-5,628.98

Finding the Fourth Proportional to 13,520.66, 20,287.13 and 5,628.98

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Solution

The fourth proportional to 13,520.66, 20,287.13 and 5,628.98 is: 8,446.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.66 : 20,287.13 = 5,628.98 : x
  2. Step 2: Convert to fraction form
    13,520.66/20,287.13 = 5,628.98/x
  3. Step 3: Cross multiply
    13,520.66x = 20,287.13 × 5,628.98
  4. Step 4: Simplify right side
    13,520.66x = 114,195,871.60
  5. Step 5: Solve for x
    x = 114,195,871.60/13,520.66
  6. Step 6: Final answer
    x = 8,446.03

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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.