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Finding the Fourth Proportional to 13,063.68, 18,018 and 9,082.80

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Solution

The fourth proportional to 13,063.68, 18,018 and 9,082.80 is: 12,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.68 : 18,018 = 9,082.80 : x
  2. Step 2: Convert to fraction form
    13,063.68/18,018 = 9,082.80/x
  3. Step 3: Cross multiply
    13,063.68x = 18,018 × 9,082.80
  4. Step 4: Simplify right side
    13,063.68x = 163,653,890.40
  5. Step 5: Solve for x
    x = 163,653,890.40/13,063.68
  6. Step 6: Final answer
    x = 12,527.40

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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.