Home / 19,311.12-26,642.82-12,236.52

Finding the Fourth Proportional to 19,311.12, 26,642.82 and 12,236.52

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Solution

The fourth proportional to 19,311.12, 26,642.82 and 12,236.52 is: 16,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.12 : 26,642.82 = 12,236.52 : x
  2. Step 2: Convert to fraction form
    19,311.12/26,642.82 = 12,236.52/x
  3. Step 3: Cross multiply
    19,311.12x = 26,642.82 × 12,236.52
  4. Step 4: Simplify right side
    19,311.12x = 326,015,399.79
  5. Step 5: Solve for x
    x = 326,015,399.79/19,311.12
  6. Step 6: Final answer
    x = 16,882.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.