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Finding the Fourth Proportional to 13,081.22, 18,047.13 and 8,041.40

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Solution

The fourth proportional to 13,081.22, 18,047.13 and 8,041.40 is: 11,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.22 : 18,047.13 = 8,041.40 : x
  2. Step 2: Convert to fraction form
    13,081.22/18,047.13 = 8,041.40/x
  3. Step 3: Cross multiply
    13,081.22x = 18,047.13 × 8,041.40
  4. Step 4: Simplify right side
    13,081.22x = 145,124,191.18
  5. Step 5: Solve for x
    x = 145,124,191.18/13,081.22
  6. Step 6: Final answer
    x = 11,094.09

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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.