Home / 12,021.88-18,031.18-3,588.26

Finding the Fourth Proportional to 12,021.88, 18,031.18 and 3,588.26

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Solution

The fourth proportional to 12,021.88, 18,031.18 and 3,588.26 is: 5,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.88 : 18,031.18 = 3,588.26 : x
  2. Step 2: Convert to fraction form
    12,021.88/18,031.18 = 3,588.26/x
  3. Step 3: Cross multiply
    12,021.88x = 18,031.18 × 3,588.26
  4. Step 4: Simplify right side
    12,021.88x = 64,700,561.95
  5. Step 5: Solve for x
    x = 64,700,561.95/12,021.88
  6. Step 6: Final answer
    x = 5,381.90

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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.