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Finding the Fourth Proportional to 12,010.95, 18,004.11 and 4,995.03

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Solution

The fourth proportional to 12,010.95, 18,004.11 and 4,995.03 is: 7,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010.95 : 18,004.11 = 4,995.03 : x
  2. Step 2: Convert to fraction form
    12,010.95/18,004.11 = 4,995.03/x
  3. Step 3: Cross multiply
    12,010.95x = 18,004.11 × 4,995.03
  4. Step 4: Simplify right side
    12,010.95x = 89,931,069.57
  5. Step 5: Solve for x
    x = 89,931,069.57/12,010.95
  6. Step 6: Final answer
    x = 7,487.42

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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.