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Finding the Fourth Proportional to 13,063.96, 18,017.16 and 8,814.34

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Solution

The fourth proportional to 13,063.96, 18,017.16 and 8,814.34 is: 12,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.96 : 18,017.16 = 8,814.34 : x
  2. Step 2: Convert to fraction form
    13,063.96/18,017.16 = 8,814.34/x
  3. Step 3: Cross multiply
    13,063.96x = 18,017.16 × 8,814.34
  4. Step 4: Simplify right side
    13,063.96x = 158,809,374.07
  5. Step 5: Solve for x
    x = 158,809,374.07/13,063.96
  6. Step 6: Final answer
    x = 12,156.30

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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.