Home / 19,100.32-26,325.84-13,436.80

Finding the Fourth Proportional to 19,100.32, 26,325.84 and 13,436.80

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Solution

The fourth proportional to 19,100.32, 26,325.84 and 13,436.80 is: 18,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.32 : 26,325.84 = 13,436.80 : x
  2. Step 2: Convert to fraction form
    19,100.32/26,325.84 = 13,436.80/x
  3. Step 3: Cross multiply
    19,100.32x = 26,325.84 × 13,436.80
  4. Step 4: Simplify right side
    19,100.32x = 353,735,046.91
  5. Step 5: Solve for x
    x = 353,735,046.91/19,100.32
  6. Step 6: Final answer
    x = 18,519.85

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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.