Home / 19,372.83-26,730.12-11,415.78

Finding the Fourth Proportional to 19,372.83, 26,730.12 and 11,415.78

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Solution

The fourth proportional to 19,372.83, 26,730.12 and 11,415.78 is: 15,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.83 : 26,730.12 = 11,415.78 : x
  2. Step 2: Convert to fraction form
    19,372.83/26,730.12 = 11,415.78/x
  3. Step 3: Cross multiply
    19,372.83x = 26,730.12 × 11,415.78
  4. Step 4: Simplify right side
    19,372.83x = 305,145,169.29
  5. Step 5: Solve for x
    x = 305,145,169.29/19,372.83
  6. Step 6: Final answer
    x = 15,751.19

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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.