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Finding the Fourth Proportional to 13,041.70, 17,999.13 and 8,569.12

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Solution

The fourth proportional to 13,041.70, 17,999.13 and 8,569.12 is: 11,826.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.70 : 17,999.13 = 8,569.12 : x
  2. Step 2: Convert to fraction form
    13,041.70/17,999.13 = 8,569.12/x
  3. Step 3: Cross multiply
    13,041.70x = 17,999.13 × 8,569.12
  4. Step 4: Simplify right side
    13,041.70x = 154,236,704.87
  5. Step 5: Solve for x
    x = 154,236,704.87/13,041.70
  6. Step 6: Final answer
    x = 11,826.43

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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.