Home / 19,195.10-26,479.12-13,216.39

Finding the Fourth Proportional to 19,195.10, 26,479.12 and 13,216.39

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Solution

The fourth proportional to 19,195.10, 26,479.12 and 13,216.39 is: 18,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.10 : 26,479.12 = 13,216.39 : x
  2. Step 2: Convert to fraction form
    19,195.10/26,479.12 = 13,216.39/x
  3. Step 3: Cross multiply
    19,195.10x = 26,479.12 × 13,216.39
  4. Step 4: Simplify right side
    19,195.10x = 349,958,376.78
  5. Step 5: Solve for x
    x = 349,958,376.78/19,195.10
  6. Step 6: Final answer
    x = 18,231.65

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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.