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Finding the Fourth Proportional to 12,011.84, 18,014.76 and 6,163.76

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Solution

The fourth proportional to 12,011.84, 18,014.76 and 6,163.76 is: 9,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.84 : 18,014.76 = 6,163.76 : x
  2. Step 2: Convert to fraction form
    12,011.84/18,014.76 = 6,163.76/x
  3. Step 3: Cross multiply
    12,011.84x = 18,014.76 × 6,163.76
  4. Step 4: Simplify right side
    12,011.84x = 111,038,657.10
  5. Step 5: Solve for x
    x = 111,038,657.10/12,011.84
  6. Step 6: Final answer
    x = 9,244.10

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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.