Home / 18,654.48-25,767.72-13,930.56

Finding the Fourth Proportional to 18,654.48, 25,767.72 and 13,930.56

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Solution

The fourth proportional to 18,654.48, 25,767.72 and 13,930.56 is: 19,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.48 : 25,767.72 = 13,930.56 : x
  2. Step 2: Convert to fraction form
    18,654.48/25,767.72 = 13,930.56/x
  3. Step 3: Cross multiply
    18,654.48x = 25,767.72 × 13,930.56
  4. Step 4: Simplify right side
    18,654.48x = 358,958,769.52
  5. Step 5: Solve for x
    x = 358,958,769.52/18,654.48
  6. Step 6: Final answer
    x = 19,242.50

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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.