Home / 12,343.17-18,515.88-4,021.05

Finding the Fourth Proportional to 12,343.17, 18,515.88 and 4,021.05

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Solution

The fourth proportional to 12,343.17, 18,515.88 and 4,021.05 is: 6,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.17 : 18,515.88 = 4,021.05 : x
  2. Step 2: Convert to fraction form
    12,343.17/18,515.88 = 4,021.05/x
  3. Step 3: Cross multiply
    12,343.17x = 18,515.88 × 4,021.05
  4. Step 4: Simplify right side
    12,343.17x = 74,453,279.27
  5. Step 5: Solve for x
    x = 74,453,279.27/12,343.17
  6. Step 6: Final answer
    x = 6,031.94

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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.