Home / 12,275.85-18,410.41-3,389.05

Finding the Fourth Proportional to 12,275.85, 18,410.41 and 3,389.05

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Solution

The fourth proportional to 12,275.85, 18,410.41 and 3,389.05 is: 5,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.85 : 18,410.41 = 3,389.05 : x
  2. Step 2: Convert to fraction form
    12,275.85/18,410.41 = 3,389.05/x
  3. Step 3: Cross multiply
    12,275.85x = 18,410.41 × 3,389.05
  4. Step 4: Simplify right side
    12,275.85x = 62,393,814.55
  5. Step 5: Solve for x
    x = 62,393,814.55/12,275.85
  6. Step 6: Final answer
    x = 5,082.65

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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.