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Finding the Fourth Proportional to 18,100.99, 27,152.03 and 6,853.87

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Solution

The fourth proportional to 18,100.99, 27,152.03 and 6,853.87 is: 10,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.99 : 27,152.03 = 6,853.87 : x
  2. Step 2: Convert to fraction form
    18,100.99/27,152.03 = 6,853.87/x
  3. Step 3: Cross multiply
    18,100.99x = 27,152.03 × 6,853.87
  4. Step 4: Simplify right side
    18,100.99x = 186,096,483.86
  5. Step 5: Solve for x
    x = 186,096,483.86/18,100.99
  6. Step 6: Final answer
    x = 10,281.01

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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.