Home / 19,113.39-26,379.18-11,155.95

Finding the Fourth Proportional to 19,113.39, 26,379.18 and 11,155.95

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Solution

The fourth proportional to 19,113.39, 26,379.18 and 11,155.95 is: 15,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.39 : 26,379.18 = 11,155.95 : x
  2. Step 2: Convert to fraction form
    19,113.39/26,379.18 = 11,155.95/x
  3. Step 3: Cross multiply
    19,113.39x = 26,379.18 × 11,155.95
  4. Step 4: Simplify right side
    19,113.39x = 294,284,813.12
  5. Step 5: Solve for x
    x = 294,284,813.12/19,113.39
  6. Step 6: Final answer
    x = 15,396.79

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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.