Home / 12,020.76-18,031.26-3,700.68

Finding the Fourth Proportional to 12,020.76, 18,031.26 and 3,700.68

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Solution

The fourth proportional to 12,020.76, 18,031.26 and 3,700.68 is: 5,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.76 : 18,031.26 = 3,700.68 : x
  2. Step 2: Convert to fraction form
    12,020.76/18,031.26 = 3,700.68/x
  3. Step 3: Cross multiply
    12,020.76x = 18,031.26 × 3,700.68
  4. Step 4: Simplify right side
    12,020.76x = 66,727,923.26
  5. Step 5: Solve for x
    x = 66,727,923.26/12,020.76
  6. Step 6: Final answer
    x = 5,551.06

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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.