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Finding the Fourth Proportional to 18,328.05, 27,492.06 and 6,490.50

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Solution

The fourth proportional to 18,328.05, 27,492.06 and 6,490.50 is: 9,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.05 : 27,492.06 = 6,490.50 : x
  2. Step 2: Convert to fraction form
    18,328.05/27,492.06 = 6,490.50/x
  3. Step 3: Cross multiply
    18,328.05x = 27,492.06 × 6,490.50
  4. Step 4: Simplify right side
    18,328.05x = 178,437,215.43
  5. Step 5: Solve for x
    x = 178,437,215.43/18,328.05
  6. Step 6: Final answer
    x = 9,735.74

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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.