Home / 18,270.54-27,408.68-7,740.59

Finding the Fourth Proportional to 18,270.54, 27,408.68 and 7,740.59

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Solution

The fourth proportional to 18,270.54, 27,408.68 and 7,740.59 is: 11,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.54 : 27,408.68 = 7,740.59 : x
  2. Step 2: Convert to fraction form
    18,270.54/27,408.68 = 7,740.59/x
  3. Step 3: Cross multiply
    18,270.54x = 27,408.68 × 7,740.59
  4. Step 4: Simplify right side
    18,270.54x = 212,159,354.32
  5. Step 5: Solve for x
    x = 212,159,354.32/18,270.54
  6. Step 6: Final answer
    x = 11,612.10

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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.