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Finding the Fourth Proportional to 13,474.77, 18,605.16 and 8,176.74

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Solution

The fourth proportional to 13,474.77, 18,605.16 and 8,176.74 is: 11,289.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.77 : 18,605.16 = 8,176.74 : x
  2. Step 2: Convert to fraction form
    13,474.77/18,605.16 = 8,176.74/x
  3. Step 3: Cross multiply
    13,474.77x = 18,605.16 × 8,176.74
  4. Step 4: Simplify right side
    13,474.77x = 152,129,555.98
  5. Step 5: Solve for x
    x = 152,129,555.98/13,474.77
  6. Step 6: Final answer
    x = 11,289.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.