Home / 18,917.52-26,105.93-10,419.48

Finding the Fourth Proportional to 18,917.52, 26,105.93 and 10,419.48

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Solution

The fourth proportional to 18,917.52, 26,105.93 and 10,419.48 is: 14,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.52 : 26,105.93 = 10,419.48 : x
  2. Step 2: Convert to fraction form
    18,917.52/26,105.93 = 10,419.48/x
  3. Step 3: Cross multiply
    18,917.52x = 26,105.93 × 10,419.48
  4. Step 4: Simplify right side
    18,917.52x = 272,010,241.57
  5. Step 5: Solve for x
    x = 272,010,241.57/18,917.52
  6. Step 6: Final answer
    x = 14,378.75

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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.