Home / 19,190-26,482.20-11,231.84

Finding the Fourth Proportional to 19,190, 26,482.20 and 11,231.84

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Solution

The fourth proportional to 19,190, 26,482.20 and 11,231.84 is: 15,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190 : 26,482.20 = 11,231.84 : x
  2. Step 2: Convert to fraction form
    19,190/26,482.20 = 11,231.84/x
  3. Step 3: Cross multiply
    19,190x = 26,482.20 × 11,231.84
  4. Step 4: Simplify right side
    19,190x = 297,443,833.25
  5. Step 5: Solve for x
    x = 297,443,833.25/19,190
  6. Step 6: Final answer
    x = 15,499.94

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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.