Home / 18,376.78-27,549.60-7,291.30

Finding the Fourth Proportional to 18,376.78, 27,549.60 and 7,291.30

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Solution

The fourth proportional to 18,376.78, 27,549.60 and 7,291.30 is: 10,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.78 : 27,549.60 = 7,291.30 : x
  2. Step 2: Convert to fraction form
    18,376.78/27,549.60 = 7,291.30/x
  3. Step 3: Cross multiply
    18,376.78x = 27,549.60 × 7,291.30
  4. Step 4: Simplify right side
    18,376.78x = 200,872,398.48
  5. Step 5: Solve for x
    x = 200,872,398.48/18,376.78
  6. Step 6: Final answer
    x = 10,930.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.