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Finding the Fourth Proportional to 18,477.96, 27,715 and 4,626.96

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Solution

The fourth proportional to 18,477.96, 27,715 and 4,626.96 is: 6,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.96 : 27,715 = 4,626.96 : x
  2. Step 2: Convert to fraction form
    18,477.96/27,715 = 4,626.96/x
  3. Step 3: Cross multiply
    18,477.96x = 27,715 × 4,626.96
  4. Step 4: Simplify right side
    18,477.96x = 128,236,196.40
  5. Step 5: Solve for x
    x = 128,236,196.40/18,477.96
  6. Step 6: Final answer
    x = 6,939.95

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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.