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Finding the Fourth Proportional to 18,058.86, 27,090.86 and 5,579.92

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Solution

The fourth proportional to 18,058.86, 27,090.86 and 5,579.92 is: 8,370.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.86 : 27,090.86 = 5,579.92 : x
  2. Step 2: Convert to fraction form
    18,058.86/27,090.86 = 5,579.92/x
  3. Step 3: Cross multiply
    18,058.86x = 27,090.86 × 5,579.92
  4. Step 4: Simplify right side
    18,058.86x = 151,164,831.53
  5. Step 5: Solve for x
    x = 151,164,831.53/18,058.86
  6. Step 6: Final answer
    x = 8,370.67

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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.