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Finding the Fourth Proportional to 18,281.36, 27,424.12 and 8,914.68

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Solution

The fourth proportional to 18,281.36, 27,424.12 and 8,914.68 is: 13,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.36 : 27,424.12 = 8,914.68 : x
  2. Step 2: Convert to fraction form
    18,281.36/27,424.12 = 8,914.68/x
  3. Step 3: Cross multiply
    18,281.36x = 27,424.12 × 8,914.68
  4. Step 4: Simplify right side
    18,281.36x = 244,477,254.08
  5. Step 5: Solve for x
    x = 244,477,254.08/18,281.36
  6. Step 6: Final answer
    x = 13,373.03

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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.