Home / 18,928.54-26,121.56-10,430.97

Finding the Fourth Proportional to 18,928.54, 26,121.56 and 10,430.97

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Solution

The fourth proportional to 18,928.54, 26,121.56 and 10,430.97 is: 14,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.54 : 26,121.56 = 10,430.97 : x
  2. Step 2: Convert to fraction form
    18,928.54/26,121.56 = 10,430.97/x
  3. Step 3: Cross multiply
    18,928.54x = 26,121.56 × 10,430.97
  4. Step 4: Simplify right side
    18,928.54x = 272,473,169.49
  5. Step 5: Solve for x
    x = 272,473,169.49/18,928.54
  6. Step 6: Final answer
    x = 14,394.83

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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.