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Finding the Fourth Proportional to 18,267.12, 27,384.48 and 8,901.90

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Solution

The fourth proportional to 18,267.12, 27,384.48 and 8,901.90 is: 13,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.12 : 27,384.48 = 8,901.90 : x
  2. Step 2: Convert to fraction form
    18,267.12/27,384.48 = 8,901.90/x
  3. Step 3: Cross multiply
    18,267.12x = 27,384.48 × 8,901.90
  4. Step 4: Simplify right side
    18,267.12x = 243,773,902.51
  5. Step 5: Solve for x
    x = 243,773,902.51/18,267.12
  6. Step 6: Final answer
    x = 13,344.96

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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.