Home / 18,600.78-25,667.75-10,535.25

Finding the Fourth Proportional to 18,600.78, 25,667.75 and 10,535.25

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Solution

The fourth proportional to 18,600.78, 25,667.75 and 10,535.25 is: 14,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.78 : 25,667.75 = 10,535.25 : x
  2. Step 2: Convert to fraction form
    18,600.78/25,667.75 = 10,535.25/x
  3. Step 3: Cross multiply
    18,600.78x = 25,667.75 × 10,535.25
  4. Step 4: Simplify right side
    18,600.78x = 270,416,042.81
  5. Step 5: Solve for x
    x = 270,416,042.81/18,600.78
  6. Step 6: Final answer
    x = 14,537.89

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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.