Home / 18,942.59-26,143.86-11,396.55

Finding the Fourth Proportional to 18,942.59, 26,143.86 and 11,396.55

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Solution

The fourth proportional to 18,942.59, 26,143.86 and 11,396.55 is: 15,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.59 : 26,143.86 = 11,396.55 : x
  2. Step 2: Convert to fraction form
    18,942.59/26,143.86 = 11,396.55/x
  3. Step 3: Cross multiply
    18,942.59x = 26,143.86 × 11,396.55
  4. Step 4: Simplify right side
    18,942.59x = 297,949,779.19
  5. Step 5: Solve for x
    x = 297,949,779.19/18,942.59
  6. Step 6: Final answer
    x = 15,729.09

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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.