Home / 19,115.39-26,380.89-11,160.18

Finding the Fourth Proportional to 19,115.39, 26,380.89 and 11,160.18

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Solution

The fourth proportional to 19,115.39, 26,380.89 and 11,160.18 is: 15,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.39 : 26,380.89 = 11,160.18 : x
  2. Step 2: Convert to fraction form
    19,115.39/26,380.89 = 11,160.18/x
  3. Step 3: Cross multiply
    19,115.39x = 26,380.89 × 11,160.18
  4. Step 4: Simplify right side
    19,115.39x = 294,415,480.96
  5. Step 5: Solve for x
    x = 294,415,480.96/19,115.39
  6. Step 6: Final answer
    x = 15,402.01

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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.